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The specified preload needs to be obtained by carefully crushing the spacer with just enough force from turning the pinion nut in order for it not to be too loose or too tight, as either one can cause serious damage if done incorrectly. Inside, the ring-gear bolts are the same as the 8.5 corporate unit, but the pinion-shaft diameter measures 1.438 inches. Check the pinion preload by rotating the pinion with a torque wrench. It is therefore important to strike a balance by carefully adjusting the backlash so that it meets manufacturer requirements for that particular differential system. We are available to help Monday thru Friday from 8 AM to 5 PM Pacific Standard Time, and most orders placed by 4 PM ship out the SAME DAY! Step 3: Back off 3/8-turn for automatic hubs, and just enough to free the bearing for manual hubs. Uses 28 or 30 spline c-clip axles. What size is pinion nut Silverado? Preload plays an important role in many machine designs for its ability to reduce wear and tear on critical components while improving efficiency and accuracy. Just out of curiosity,what are the 8.5 (r 65lbft & c 60lbft ?) For 30 spline pinion axles, PYN10 offers a 10-bolt 8.5" pinion nut that is designed to provide secure and reliable performance in the toughest of conditions. This strength comes from its larger pinion shaft diameter which measures 1.625 inches with 30 splines, 13 percent larger than the 1.438 inch diameter and 25 spline pinion shaft found on a 10-bolt axle. When looking at the housing from the rear, an 8.5 will have two squared off chunks of casting hanging on each side near the bottom of the differential. Currie 44 : Torque: Pinion Nut (Solid Spacer) 250 ft lbs. Zach got enlisted by a friend to help rebuild the 7.5" factory 10 Bolt rear in the G-Body Monte that he is working on, so naturally it became a teaching moment. By doing this, it allows for the desired amount of pressure or preload to be applied on these bearings so they are able to work in harmony with each other within their particular drivetrain system. Differential Locker Comparison - A detailed comparison of popular differentials and lockers. Backlash refers to the distance between two mating gear teeth when they are not engaged. Pinion Nut Torque Spec. His passion for performance got him noticed by many locals, and he began helping them modify their vehicles. Peter - I'm retired but work part time as a pain in the ass. Find out how to access AutoZone's Torque Specifications Repair Guide for 300, 300C & Magnum 2006-2008, Charger 2006-2008. Sierra Gear & Axle is a premium line of light-duty differential parts. The "feel" people are way more experienced that you or I so the top one is re-commended. 2.2L FOUR CYLINDER ENGINE: Camshaft sprocket bolt 96. This one is not as easy as it sounds. OEM bolts have thread locker on the threads. Save Share. Use Loctite #271 on the bolt threads and torque in a crisscross fashion to 55 ft-lb. With its strong construction and corrosion resistant coating, the PYN10 provides reliable performance for years to come, making it one of the best choices you can make when securing your vehicle's rear axle assembly. All rights reserved. tighten the nut down till its snug and put on your torque wrench and turn it about 3 revolutions. The oval-shaped cover measures 8 5/16 inches by 10 9/16 inches. Once you get close to the right pinion preload, shim thickness adjustments need to be made in the .003 and down range to make adjustments, small increments make a big difference in pinion preload. (Note: The 7.5 GM rear used different pinion bearings in 1979-80 vs. the 81-up axles, so you want to make sure that the old bearings match up to your new pinion bearings). :yipi: Thats it?? At West Coast Differentials we are committed to making your experience with us totally enjoyable. While the 8.5-inch rearend was used on vehicles up to 1999, The 8.6-inch (8.625) was used on 2000 and later-year trucks. If the backlash is too tight, you'll need adjust the carrier shim by moving it away from the pinion. In this context, "hardest gear" refers to the ratio of front sprocket teeth to rear sprocket teeth - typically expressed as 4.55:1. This is all with the old crush sleeve. 8-10 ft lbs: None: None: GM 12 Bolt Car: Torque: Lubricant: Thread Locker: Main Caps: OEM Housing: . For reference use at own risk. Max Ellery's Land Cruiser Repair Manual 1969-1990 (FJ & RJ) We talked to a few of our in-house race experts about ways to make this racing season your best one yet! 1/2" T-bolts - 50 ft lbs. Ring Gear Bolt Torque (Foot lbs) (N.m.) Bearing Cap Torque (Foot lbs) (N.m.) AMC; Model 15 : 20 - 40 (2.3 - 4.5 ) . These are considered highway gears that are good for top speed, not for off-the-line performance. Failure to apply enough preload on the bearings can have an adverse affect on gear contact patterns. Final torque on the pinion nut is necessary to compress the crush sleeve. Axle Retainer Plate Nuts: 3/8" T-bolts - 30 ft lbs. I have seen street 12 bolts that . If sticky tires are used, youll quickly turn the 7.5-inch rear into a pile of unusable parts. This essential part is designed for use on vehicles with a 1 1/4 inch socket and 7/8 x 14 thread that can be found in many common automotive applications such as differential covers, yokes, and axle shafts. You will need a torque meter in inch-lb. Ford 9 inch Torque Specs for Ford 9 inch center Section torque specs. Unfortunately, you cannot rely on this torque because the crush sleeve provides unpredictable and non-linear resistance as it buckles and crushes. On the other hand, if your backlash is too wide you will need to adjust by moving the carrier towards the pinion with a similar measurement technique. This method works every time is done precisely as described. without any detrimental effects occurring. Failure to apply enough preload on the bearings can have an adverse affect on gear contact patterns. This procedure is necessary in order to ensure that everything within the drivetrain is working correctly and efficiently. Rotate the pinion when tightening the nut to seat the bearings evenly. Furthermore, this process helps improve performance by increasing load capacity due to preventing misalignment caused by environmental factors such as vibration or thermal expansion of parts over time; additionally it also allows for smoother operation with less noise generation compared to regular ball bearings with their built-in clearances leading ultimately to higher durability rates since theres less overall wear and tear on individual components throughout long term use. The first is to use a crush collar; this involves applying pressure between the yoke and cup until it reaches the desired depth. Like all Chevy 10-bolts, the axles are retained by C-clips on the inner end of the axle shaft inside the carrier. Mgrotel, nice cliff notes. Ford 9 inch torque specs; Gear Ratio Calculator; Order Forms. First I measured the old crush sleeve as a starting point. Step 1: To seat, torque nut to 50 (lb-ft) while spinning hub. Differential cap bolt torque: 90 ft*lb. I got the price for the seal, and it is near $9. The 8.5-inch 10-bolt also shares the same pinion shaft diameter as the more expensive 12-bolt. The only torque you should be concerned with is the torque it takes to rotate the pinion gear alone, 8-14 inch pounds for old bearings, 16-29 in/lbs. DIFF MODEL. By asking ourselves what makes us different than other companies, our answer is that we deliver the level of customer service that other companies only promise. Sometimes strength is an important factor when choosing between components, and this is true with the 10-bolt and 12-bolt rearends. Additionally, it increases load capacity because it prevents misalignment due to vibration or thermal expansion of components. 3.08 and numerically lower gears = 1.660-inch, 3.23 and numerically higher gears = 1.950- inch, 2.73 and numerically lower gears = 1.615-inch, 3.08 and numerically higher gears = 2.00-inch, 2.56 and numerically lower gears = 1.530-inch, 2.73 and numerically higher gears = 1.720-inch. I agree that the preload needs to be about 30 inch pounds. minimum is 181 ft-lbs., maximum 325 ft-lbs., keep cranking till you get within the range of 7.8-11.3 in-lbs of preload torque on the pinion. I have a leaky pinion seal and housing seal so I am planning on replacing the seals in the very near future. The most current parts and application information can always be found here on our website or by calling one of our differential parts experts. The rear end is full of it. BOP stands for Buick/Oldsmobile/Pontiac. Tighten nut until it takes 15-20 inch lbs of torque to rotate the pinion bearings: None: Self Locking Nut . I don't use it on the bearing cap bolts. Assemblers must decide for themselves how much leeway they are willing to allow in this area and assess whether the potential results would warrant such leniency. We started by getting a rebuilt kit from Motive Gear . Copyright 2023 Sierra Gear & Axle - Web Design by Zenxeon Technologies, Backlash for Aftermarket gears .006 -.012, Instructions Differential Installation & Setup, Differential Setup & Torque Specifications, GM RPO Codes Axle & Ratio Identification, Measurement Axle Shaft Length & Bolt Circle. Alternatively, shims can also be used to adjust the pinion depth. Replace original worn or damaged nuts each time a gear set is changed. . Order our high performance synthetic oil and friction additive combo kit at time of order for ring and pinion or bearing overhaul kit and pay only $49.95 plus S&H, a $54.00 value. Therefore, when building a performance car or truck that will be subjected to higher than normal stresses and torque loads, such as those produced by high horse power engines or increased traction created by sticky drag racing tires, it may be beneficial to choose a 12-bolt instead of a 10-bolt axle assembly in order to ensure maximum strength and reliability. Currie 60/70 : Torque . Come join the discussion about performance, lift kits, wheels, tires, modifications, troubleshooting, maintenance, and more! Inch pound torque wrench that will read that low of a number which will be "VERY" costly. Continue tightening the pinion nut to collapse the spacer and preload the bearings. It has a black oxide finish that ensures corrosion resistance while its construction of hardened steel ensures durability even under extreme conditions. GM 14 Bolt Specs (all data for SRW truck 14 Bolt axle - others may vary - see table on "different 14 bolts" below) . This high quality product ensures that your vehicle's rear axle assembly will remain securely fastened and properly aligned during operation, giving you peace of mind when driving on the roads or tracks. To do this, measure 10 thousandths of an inch on the shim and shift it accordingly. 3/8" x all lengths 45-50 ft lb. The following table contains the proper specifications for all popular axles. The pinion nut should also measure 1 1/8 inches, if the OEM pinion nut is still in use. Vendor Part Number. Quaility Gears provide guaranteed performance. What happens if you have too much backlash in differential. We have your differential parts in stock ready to ship today. With its superior strength and durability, you can count on your PYN10 pinion nut to remain securely in place for years of reliable service. This article is a compilation of information and and specs relating to the venerable GM Corporate 14 Bolt full-floating rear axle - also referred to as the 10.5" (after the size of the ring gear in inches) or just simply the "14b" for short. Or some do it by feel. The pinion bearing preload is an important component of the drivetrain system, as it works to ensure that the pinion gear's tapered bearings are running smoothly and efficiently. 24-32 INCH pounds?? I am also replacing all the bearings on my son's 97 Chevy rear end. Good luck finding one of these, however, as they are very popular among performance enthusiasts. Not only will you be getting the best quality performance with JEGS Pinion Nut, but you'll also have the convenience of knowing it's made to fit GM 8.875 inch 12-bolt car and truck axles. The 8.5 rearend will have a round cover, and part of the cover will extend rearward to make room for the ring gear. This means that turning the pedals at the front will turn the back wheel 4.55 times over, which requires quite a bit of effort but allows for fast movement once achieved. I have seen the ring gear bolts, pinion nut and retaining bolt come loose, but never a bearing cap bolt. sny 00235 converted Allstar Pinion Nut GM 7.5 8.5 ALL72156. This is zero backlash. FORD: .020. Constructed from high quality steel, the PYN10 features an integral washer design that ensures proper alignment of the bearing preload during installation and prevents damage to both the yoke and bearings. Axle Retainer Plate Nuts: 3/8" Grade 8 - 45 ft lbs. For a better experience, please enable JavaScript in your browser before proceeding. 2008 Sprinter 2500 170 - camper van. 2429 Mercantile Drive Suite A We look forward to serving you! grade 8. If too tight, the bearings become overstressed and will fail prematurely, causing a catastrophic failure of both the ring and pinion gears. This ring and pinion setup guide is Copyright Crawlpedia.com - Please provide a link back to this page when copying. Not sure what to do here but I know I'm looking at a boat load of parts I do not have the money for right now so not sure what the hell I'm going to do. Over 6,000 Automotive Torque Specs. Additionally, its unique thread pattern provides torque retention while eliminating any possibility of loosening or vibrating off over time due to vibration or shock loads. ExtCab96S_Dime . Crankshaft Pulley to Hub Bolts 37. One thing often overlooked is the RTV sealant that needs to be applied to the splines (otherwise rear end grease can leak past the splines), and locktite on the new pinion nut. Not only was the 10-bolt assembly used in low performance applications, but it was also utilized in a variety of different vehicles ranging from Camaros, Chevelles and Impalas to even the earlier Chevy IIs. CHECK FREQUENTLY as you progressivley tighten the pinion nut. If it takes more than 25 in lbs to turn the pinion, then you have tightened it too much and you need to back the nut off. Ring and Pinion Ratio Variations - An explanation of why some ring and pinion gear ratios vary. To reach an accurate level of tension or preload, experience and expertise are usually required when dealing with this type of repair work. GM 8.875" 12 Bolt Differential Ring Gear and Pinion Set. **Note the Pinion nut is in INCH pounds Ring Gear Bolts = 55 lb. The rotational torque spec is between 15-19. . With the carrier removed w/ new bearings pinion bearing preload should measure a rolling torque of 20-30 in/lbs. This process must be done carefully, gradually increasing the tightness of the nut in increments until it reaches the desired torque level required to rotate the pinion correctly. However, the gears will not interchange with a Chevy 8.2. The ideal amount of torque required on a pinion nut when installing an axle depends on many factors, but typically you should aim for 110-125 ft/lbs of torque unless otherwise specified by step #6 during the installation process. Sometimes when repairing or replacing components within a transmission, you may encounter a crush sleeve. That's all fine and dandy but my pinnion was chewing it's way through the carrier and now I can't get the passenger side c clip to drop out. There is a difference, but you cant see it unless you set both units on their side, and then measure the distance from that surface to the face where the ring gear attaches. Its strength and reliability have been proven time again, making it an excellent option for drivers looking for reliable performance from their vehicle. GENERAL MOTORS: APPLICATION: FT-LBS / ( N-m) AXLE SHAFT FLANGE BOLT 'S' BODY CAR: 27 (37) TRUCKS: 60 (82) AXLE SPINDLE NUT 'A' BODY: 192 (261) 'C' 'E' 'H' & 'K' BODIES : 180 (245) 'J' & 'L' BODIES . While a carrier-bearing girdle is available for the 8.2-inch rearend and does give some support to the housing it doesnt provide a reliable and suitably strong solution. Shop for New Auto Parts at 1AAuto.com http://1aau.to/c/553/e/driveshaftThe differential Pinion Flange is part of the universal joint that connects the drive . Dana 60. If it takes a 1/2-inch wrench to remove it, its an 8.2. We promise not to use your email address for anything but exclusive updates from the Power Automedia Network. We show you how to keep that old GM transmission when swapping in an LS engine. Only 1 nut, it all depends on if your using a new crush collar or not and if your just swapping out the pinion yoke or a full rebuild. Follow along as we show how to measure and install a C10 one piece driveshaft. Camshaft thrust Plate bolts 106 in-lbs. As a result, this construction became one of the most popular axle assemblies on the market due to its durability and affordability. Follow along as Zach works over the old 10 bolt and brings it back to life. The pinion diameter is 1.438 inches, and has 25 splines. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. 6 TO 10. The trick is to get it tight as possible without crushing the sleeve any more then it already is crushed. MODEL 20. Yukon Gear's Pinion Nut makes any job more efficient by ensuring your parts remain secure while providing superior protection from contaminants. The number of teeth on each of these gears determines how much rotational force is converted into torque or speed. to do this. Fords small block and big block engine families have their share of flexplate differences. Original gear ratios in pickups can range from 2.41:1 all the way up to 4.10:1, offering a wide variety of options depending on your needs and preferences. The Series 3 carriers are good for use with 2.73 and lower gears (numerically higher), so 3.08 and 3.73 gears work well. and 12 bolt #s. found these #s at Richmond Gear: Torque specifications. 1. remove d shaft straps push shaft aside. Locate a Sierra Gear & Axle Distributor near you. This difference can cause issues with accuracy and repeatability in some applications, necessitating either higher-end components or additional compensation mechanisms. It has been proven to be reliable in high-performance and high-horsepower applications, but it can also handle occasional abuse from use on the racetrack. The GM 8.5" 10 Bolt axle, also known as the GM 8.6" axle or GM 10-Bolt, is available in many front and rear axle . . Determining the correct flexplate for your V8 Mopar-powered project takes a little understanding of how these engines were balanced. Axle Images: Axle Details. Tighten to 8 ft-lbs (10 N-m), then tighten an additional 1/3 turn to at least 37 ft-lbs (50 N-M). The small torque . Most 8.5-inch 10-bolt rearends have two extruded, cast-in lugs on the bottom of the differential housing at the 5:00 and 7:00 positions. GM 10 Bolt 8.2; GM 10 Bolt 8.5; GM 12 Bolt 8.875; GM 8.6 IRS; GM Install Kits; MOPAR. This assembly featured an 8.2-inch ring gear diameter as well as 28-spline axles which provided adequate strength for these vehicles. A full range of pinion gears is offered for the Chevy 10- and 12-bolt axle assemblies so you are able to select the correct gear set for your vehicle, application, and setup. In addition, if the sleeve is over-crushed during installation then it must also be discarded and replaced with a new one as crushing it too much can cause damage to other components within your transmission. Depending on what you're using it for, there is an axle size to suit; 7.5/7.625-, 8.2-, 8.5- or 8.6-inches from smallest to largest respectively, so no matter how much horsepower you need to support, there is an option available to fit your needs perfectly and provide excellent strength and reliability even under heavy loads and high speeds. Next remove the nut and change the seal. Inside the 8.2-inch 10-bolt, the ring-gear bolts have 9/16-inch socket heads with 3/8-24 left-hand threads. You Make The, SEMA 2022: GEARWRENCH Leveled Up With Distinct Quality Hand, Reignite Your Cat Eye Silverado Headlights With, SEMA 2022: Paragon Corvette Adds Performance Parts To, PRI 2022: FuelTech Talks About The Tech Of The FT700, PRI 2022: Concept Performance Now Offers Aluminum LTR, PRI 2022: Get Locked In With Forgeline Beadlock, Creative Automotion: The Art of Farmtruck &, Randy Bolig The Media Mover And Shaker Behind Chevy, How Ken Lingenfelters Love for Corvettes Benefits So, Shop Tour: Prestige Motorsports Is Your One-Stop Hot Rod, Full Factory Tour: How Edelbrock Makes Its Cast Aluminum, HOLY SHIP! 12 Bolt Rear Axle Torque Specs. After that we removed the old bearings and cleaned all the parts up in the solvent tank. If used in a daily driver or cruiser application, the 7.5-inch rearend should survive behind an engine with 350hp, if traction is limited during spirited driving. I like to slowly tighten the new pinion nut until I take up all of the front to back free play. Used bearings 10 to 14 inch pounds. Over several generations of small block Chevy (and big block Chevy) engines there have been several changes that dictate what flexplate works with them. Usually, when people are discussing gear ratios, theyre referring to the relationship between a pinion gear and a spur gear. Here is my related question at almost 1 a.m. and torn down in driveway need to get to work: There was quite a chance that you have crushed the sleeve beyond the preload spec to make it hard to turn. But, did you know there is more than one style of 10-bolt rearend? The pinion nut should then be secured and tightened until there is no bearing play at all. Learn more about GM steering column identification, GM steering column lengths, and GM steering column compatibility. While engine power is an indicator of a vehicle's ability to accelerate quickly and reach high top speeds, torque is an indication of how efficiently it can move. Typically, 10-bolt differentials are specific to a series of gears. Part Number. Unfortunately, unless you have the two units side by side, it is nearly impossible to tell them apart. CRAWLPEDIA Off-Road Encyclopedia. If you're just starting out your adventure with single speed or fixed gear bikes then it's best to opt for ratios around 2.7-2.8 as they are easier on your legs and can help build up strength gradually as you continue cycling further and faster each time. Some vehicles require an 8.5" 10-bolt pinion nut to secure the rear axle assembly of their vehicle. The control arm-mounting ears on top of this 7.5 rearend denotes it is usable for any 1978-88 GM A or G-body intermediate like a Cutlass, Monte Carlo, El Camino, Malibu, Regal, or Grand Prix. Upon initial . Call 800.979.0122, 7am-10pm, everyday. The purpose of preloading a bearing is to eliminate any existing clearance that has been designed into standard ball bearings by utilizing tension or compression loads applied directly onto each component within the assembly. Reports from multiple Chevy Bolt owners confirm that on May 28th, 2021, Chevrolet began taking steps to rectify any potential issues with these cars by paying off the original cost and allowing them to be taken off of the road. Find the application and ratio you need? 1/2" x all lengths 100-110 ft lb. He is resurrecting a G-Body Chevy Monte Carlo and decided to reuse the original 3.73 gears and a factory GM posi unit. This is also likely to reduce run times due to lower temperatures as theres less load being put on your vehicles engine when compared to running with a bigger pinion and smaller spur gear combination. The 8.5-inch 10-bolt rearends have ten 3/4-inch hex head bolts with 7/16-20-inch left-hand thread bolts that hold the ring gear to the carrier. Step 2: Back off, then torque to 35 (lb-ft) for automatic hubs,or 50 (lb-ft) for manual hubs. 440-500 lbs ft and I wouldn't tackle it bring it somewhere where they know what they are doing..I have a four foot torque wrench that goes to 500 but thats one hell of a grunt and you have to hold the flange while doing this. The 8.5-inch is often referred to as the "GM corporate 10-bolt" because of its multiple uses, and the 8.5-inch is a semi-float axle, meaning it has only one axle bearing per side, mounted inside the axle tube. With the pinion bearing properly lubricated, increase or decrease . This website uses cookies or similar technologies to enhance your browsing experience. Order before 4PM and most parts ship out the SAME DAY. I reused the old crush sleeve and just added a thin shim out of the set to be able to get the pinion preload using the old crush sleeve. Thats usually proven when used in high-performance, high-horsepower applications. How do you fix a loose pinion bearing preload? Shop Differential Pinion Bearing Spacers and Sleeves at Summit Racing. It should be noted that while this axle is suitable for everyday driving and light duty applications, it must be upgraded if you plan on doing any serious racing or off-road activities with your vehicle. This will cause the bearings to press more firmly against the races, thereby increasing preload tension. A Series 2 carrierwill work with 2.56 and higher gears (numerically lower) such as 2.41. It doesn't have to be hard, and we offer some tips to keep your car's finish in top shape. This sleeve must be replaced every time the pinion nut is torqued. Use oil on the pinion nut washer surface during all assemblies . . Whats The Reason Enthusiasts Cant Get, Yes I Am A Dinosaur, And Why I Feel Electric Cars, Rare Rides: The 1969 Chevrolet Camaro COPO, SPEC Clutches: For That Next Engine Swap Or OEM Upgrade, Shop Tour: Brian Tooley Racing Expands To Be A One-Stop Shop, Moroso Anti-Roll Kit Is The Right Tool For The Dragstrip, Why You Need A Proper Fuel Tank Vent In Your Ride, Fenix Is A Next-Gen 69 Camaro With 1,180 Horsepower. To install your ring and pinion gears and/or differential correctly, it is critical to torque your bolts and set your preload and backlash correctly. If the nut is loose then the crush sleeve must be changed. If you're looking to get the most out of your pickup truck, you may want to consider changing the gear ratios. It refers to how much tension is applied to the spring before it's installed in the vehicle and can be adjusted accordingly. for new bearings. Lifted78Chevy. Unfortunately, once the tension on this type of sleeve has been released during installation it cannot be re-used since it will no longer hold the proper tension. The LS swap is no doubt still going strong, but if youre planning to run an automatic behind your 4.8, 5.3, or 6.0L LS-powered ride, youll need to pay attention to a few items we discuss in this buyers guide. Like most 10-bolts, the axles are held in place by C-clips on the inner end of the axles. A 2.6-3.0 gear ratio range is perfect for flat places and most people find this ratio suitable for their needs. To begin, the yoke or coupler must be attached to the pinion shaft. The 10-bolt GM rear end has been used in many different applications since its introduction in 1968 and continues to be highly regarded as one of the toughest axles available today due to its proven durability and versatility over decades of use in a variety of situations requiring extreme performance requirements from street racing too off roading adventures. If in doubt, consult our staff of differential parts specialists. It's not easy, but pushing yourself can be rewarding; after all, with hard work come great rewards! With careful consideration, selecting an appropriate option for your driving style can make a world of difference when it comes to performance and efficiency behind the wheel. Tightening Torque Clamp Load (lbs.) #5. I used an 1/4" inch-lb torque wrench with two adapters and a 1 1/16" socket to check the preload. Good info on this site from what I've seen so far, kudos. FOR 1994-2001 CHEVY S10's & GMC SONOMA's. **ALL TORQUE SPECS ARE PER GM FACTORY & HAYNES MANUAL**. The torque it takes to crush . . 10.50 PINION NUT: GM . Come join the discussion about Silverados, Sierras, and other full size trucks performance, modifications, suspension, lift kits, tires, maintenance, and more! The closer the teeth count is between the two gears, the higher the speed output will be; conversely, if there is a greater difference in tooth count, then more torque will be generated. Oct 29, 2001. Speedway also offers the . Call 800.979.0122, 7am-10pm, everyday. Yukon Gear & Axle SK CSGM8.5 Yukon Gear & Axle Crush Sleeve Eliminator Kits | Summit Racing. Build your own custom newsletter with the content you love from Chevy Hardcore, directly to your inbox, absolutely FREE! does anyone know the torque specs for a 10 bolt 7.5 for the pinion and carrier caps . These protrusions are larger than those on the 7.5 rearend. The X and F-body spring perches come in two versions: mono-leaf (left) which is shallower than the multi-leaf (right). Gear Ratio Finder - Find the ideal axle gear ratio for your new larger or smaller tires. It also has an inner diameter of 1 3/16", allowing it to accommodate most 30 spline yokes without any extra modifications or components needed.