As the speedometer rises, each gear shift is accompanied by an even more intense sensation of power, making every drive exhilarating and unforgettable. Shop Differential Pinion Bearing Spacers and Sleeves at Summit Racing. Use Loctite #271 on the bolt threads and torque in a crisscross fashion to 55 ft-lb. GM 14 Bolt Specs (all data for SRW truck 14 Bolt axle - others may vary - see table on "different 14 bolts" below) . Bear Preload IN. TORQUE SPECIFICATIONS. Record pinion flange rotating torque, with a torque wrench. **Note the Pinion nut is in INCH pounds Ring Gear Bolts = 55 lb. Nov 18, 2016. Connecting Rod Cap Nuts 38. The rotational torque spec is between 15-19. It also uses a 10 5/8-inch irregular-shaped cover. Axle Retainer Plate Nuts: 3/8" Grade 8 - 45 ft lbs. I like to measure the old crush sleeve and machine down a solid pinion spacer to that dimension and then . Either way, the nut should be tightened to produce 24-32-in-lb of torque to turn the pinion . Uses 28 or 30 spline c-clip axles. This axle was found in various vehicles from Chevrolets and Pontiacs to Oldsmobiles and Buicks with some of these models continuing production well into the early 80's. Come join the discussion about Silverados, Sierras, and other full size trucks performance, modifications, suspension, lift kits, tires, maintenance, and more! The 8-inch Ford rear axle was used from the early 1960s to 1980 in small and mid-size passenger cars with six- and small-block V-8 engines. The inch pound rating is the force required to turn the pinion after the crush sleeve has been crushed. 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 . Sierra Gear & Axle parts are designed and engineered to the highest quality specifications for use in street, off-road and performance environments. With its strong construction and durable material, the PYN10 10-bolt 8.5" pinion nut makes for an excellent choice for those looking for reliable performance in even the most extreme environments. Save Share. Gear Ratio Calculator - Calculate the gear ratio of gears based on their tooth count. Step 1: To seat, torque nut to 50 (lb-ft) while spinning hub. big gear head. Is a GM 10 bolt rear end good? An 8.2 (shown) will have the same contour as the cover. The pinion nut should also measure 1 1/8 inches, if the OEM pinion nut is still in use. So, in order to adjust the pinion bearing pre-load, shims of varying thicknesses are inserted into pre-load retainers. Ring and Pinion Ratio Variations - An explanation of why some ring and pinion gear ratios vary. 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. I need the torque on the pinion nut for the rear differential. Pinion Nut (Solid Spacer) 28-Spline Pinion - 200 ft lbs. Differential Locker Comparison - A detailed comparison of popular differentials and lockers. Mikz86TA. The 8.5-inch 10-bolt also shares the same pinion shaft diameter as the more expensive 12-bolt. The retaining bolt can be hard enough to get out without using the red high strength Lock Tight on it. From there I make very minute changes, checking the pre load with the inch lb torque wrench several times. The reliability of the axle tube and . 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. Order before 4PM and most parts ship out the SAME DAY. Give us a try, we think you'll be glad you did! This tension is achieved through a collapsible spacer which is placed between the bearings and then compressed by turning the pinion gear nut. 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. I have a leaky pinion seal and housing seal so I am planning on replacing the seals in the very near future. Not only has the 10-bolt rearend proved its worth in high-performance, high-horsepower applications, but it has also been found to be a great unit for street/strip cars. 24-32 INCH pounds?? This results in improved performance, longer life span and more efficient operation of the system. 1988 C1500 Silverado, 5.7L with some go fast parts. Continue tightening the pinion nut to collapse the spacer and preload the bearings. The lower end of this range will give you a cadence of 90 rpm which translates to an average speed of 30 km/h while the upper end will get you going up to 34 km/h. checking the pre load with the inch lb torque . you have it pretty much. Crawlpedia is an off-road encyclopedia featuring a complete list of proper ring and pinion gear set up torque and backlash specs. Pinion Nut Size: 1-1/4" Featured Products: GM 8.2"/8.5"/8.6" (Chevy) 10 Bolt / Aluminum Girdle Cover / TA Performance / TA_1807 . 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. For a better experience, please enable JavaScript in your browser before proceeding. Currie 60/70 : Torque . Once you have obtained your desired setting, it is important to apply preload while rotating the pinion in order to ensure proper engagement with its mating components. It doesn't have to be hard, and we offer some tips to keep your car's finish in top shape. Recheck the torque to turn the pinion until it gets to the point where the amount of torque it takes to turn the pinion is between 15-25 in. This should result in approximately 7 thousandths of an inch adjustment in terms of backlash. How a GM 10-Bolt Differential Goes Bad. This means that extra care and attention needs to be taken when installing these components so that they do not become damaged or rendered unusable. Camshaft thrust Plate bolts 106 in-lbs. By reducing the amount of free play between components, preloaded bearings can provide greater accuracy and quieter operation than standard ball bearings with clearances. Edit: To begin, the yoke or coupler must be attached to the pinion shaft. Alternate Description. West Coast Differentials stocks a complete line of light duty axle parts for Chevrolet, Chrysler, Dana, Ford, GM, Jeep and Toyota and more! Inch pound torque wrench that will read that low of a number which will be "VERY" costly. If sticky tires are used, youll quickly turn the 7.5-inch rear into a pile of unusable parts. Not only has Chevrolet taken the initiative to buy back some of their 2017-2019 Chevy Bolt electric vehicles (EVs) due to safety recalls, but they have also gone above and beyond by reimbursing owners the full purchase price for their vehicle. Call 800.979.0122, 7am-10pm, everyday. Chrysler 300 and Dodge Charger 2006-2008 Torque Specifications Repair Guide. Alternatively, shims can also be used to adjust the pinion depth. Tighten nut until it takes 15-20 inch lbs of torque to rotate the pinion bearings: None: Self Locking Nut . 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. 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. Gear oil is nasty stuff, mostly in smell. We pressed the new bearings onto the carrier and the front pinion bearing and went ahead and put the assembly together into the housing. Build your own custom newsletter with the content you love from Chevy Hardcore, directly to your inbox, absolutely FREE! 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. Ford 9 inch torque specs; Gear Ratio Calculator; Order Forms. When I changed all the bearings in my suburban rear end, I bought the crush sleeve eliminator shims from Summit. Good info on this site from what I've seen so far, kudos. That is theimpetus for why we decided to put this swap meet/junkyard identification guide together. GM 8.5" 10 Bolt / Ring & Pinion Gear Set w/ Master Bearing . Or some do it by feel. Instead of using a C-clip to hold the axle in the housing, these axle assemblies use bolt-in axles, much like an 8.2 BOP rearend. 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. Again, this would be okay in a daily driver or cruiser application, but if installed behind an engine with horsepower numbers climbing into the 400 range, you can plan on an eventual failure. Like all Chevy 10-bolts, the axles are retained by C-clips on the inner end of the axle shaft inside the carrier. Typically, 10-bolt differentials are specific to a series of gears. 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. The pinion diameter is 1.438 inches, and has 25 splines. 6 TO 10. Furthermore, this action reflects positively on the company's overall commitment to providing reliable transportation services while ensuring its customers' safety remains paramount at all times. The side bearing preload is the difference of preloads (5) x the gear ratio (3.73) = 18.65. This applies to all types of vehicles with any type of gearing system regardless of pitch or size it doesnt matter which one you change as long as you can adjust it accordingly. GM 8.875" 12 Bolt Differential Ring Gear and Pinion Set. Pinion nut torque (shimmed preload style): 250 ft*lb. There are a few that have geared axles on here so they should chime in and help out with Real TECH :rocking: As an added reference, Speedway Motors also offers a great book from CarTech, titled "High-Performance Differentials, Axles & Drivelines" that helps with step by step breakdowns of the process. If it takes a 5/16-inch wrench to remove it, its an 8.5. 1/2" x all lengths 100-110 ft lb. Then after getting the proper gear patterns you put the new crush sleeve and seal in place and tighten the pinion nut to force the crush sleeve. Not sure the torque specs on the carrier bearing caps, we red lock-tight them and hit them with the impact pretty hard at work. Axle Type Cover Bolts FT. LBS. 2 ways. Preload doesn't have any effect on spring stiffness; rather, its used as a way of compensating for springs that are too soft or too stiff. MOPAR: 8.75" x 1.75" pinion: .090. . The pinion on the left is part of a 4.11:1 gear set; the one on the right is a 3.08:1 pinion. I used an 1/4" inch-lb torque wrench with two adapters and a 1 1/16" socket to check the preload. It has a black oxide finish that ensures corrosion resistance while its construction of hardened steel ensures durability even under extreme conditions. range. This is an 8.2 BOP axle. I am also replacing all the bearings on my son's 97 Chevy rear end. The rotating torque must be 2 to 3 N-m (15 - 25 inch pounds). GM 10 Bolt 8.2; GM 10 Bolt 8.5; GM 12 Bolt 8.875; GM 8.6 IRS; GM Install Kits; MOPAR. It is well known that altering the gear ratio of a vehicle, whether it be through changing the pinion or spur gear, can have a significant effect on performance. It involves placing a collapsible spacer between the bearings of the pinion gear, then using a torque wrench to tighten the pinion nut until it reaches the correct amount of pressure or preload on the bearings. 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. ft. 2.2L FOUR CYLINDER ENGINE: Camshaft sprocket bolt 96. Final torque on the pinion nut is necessary to compress the crush sleeve. You will need to know that there are different series of differentials (seriestwo and three). It was used in different models by all GM divisions with the exception of Cadillac. Additionally, this nut features a thread pitch of 11/16 x 20 which allows for easy removal during maintenance periods or when replacing bearings or other components within your axle assembly. Find the torque thats on it before hand and tighten it down to that afterwards. 7.25 12-14: 6-7: 6-10: 55: 50: 8 IFS: 12-15: 6-8: 6-10: 55: 60: 8.25 12-15: 6-8: 6-10: 55: 60: 8.75 - 41 Case: 13-15: 6-8: 6-10: 55: 90: 8.75 - 42 Case: 15-25: 7 .
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