10.50 PINION NUT: GM . Install left-side adjusting nut lock, washer, and bolt. I have been taking it to ~250-300 ft lbs. If sticky tires are used, youll quickly turn the 7.5-inch rear into a pile of unusable parts. What size is pinion nut Silverado? 10-Bolt Chevy Identification Guide. Know What You're Looking At Sometimes, you need to push yourself. The side bearing preload is the difference of preloads (5) x the gear ratio (3.73) = 18.65. The Hex is 5/16 the threaded part is SAE 5/16 inch 18 threads per inch. I used an 1/4" inch-lb torque wrench with two adapters and a 1 1/16" socket to check the preload. JavaScript is disabled. Edit: 2023 Power Automedia. Good info on this site from what I've seen so far, kudos. 1/2" x all lengths 100-110 ft lb. Pinion nut torque (shimmed preload style): 250 ft*lb. Just think, now when you and Drew drive out to Moab, you can sit and take a nap every other time Drew has to fuel. To reach an accurate level of tension or preload, experience and expertise are usually required when dealing with this type of repair work. 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. In addition, if a crush sleeve is over-crushed during installation then it must be discarded and replaced with a new one as it will no longer be able to provide the necessary level of tension between the bearings for them to function properly. Some vehicles require an 8.5" 10-bolt pinion nut to secure the rear axle assembly of their vehicle. Step 2: Back off, then torque to 35 (lb-ft) for automatic hubs,or 50 (lb-ft) for manual hubs. It first appeared in 1970 production cars as a corporate replacement for the 8.2-inch 10-bolt rearend. The amount of backlash varies depending on the quality and cost of the gearhead; more expensive precision gearheads have nearly zero backlash, while an inexpensive model may have as much as one degree or more. The pinion nut should then be secured and tightened until there is no bearing play at all. lbs. In most cases, however, even with a straight case, a certain degree of backlash can be tolerated up to 0.005? We'll send you the most interesting Chevy Hardcore articles, news, car features, and videos every week. 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. 1988 C1500 Silverado, 5.7L with some go fast parts. The rotating torque must be 2 to 3 N-m (15 - 25 inch pounds). I have a 1993 Suburban K1500. CRAWLPEDIA Off-Road Encyclopedia. Talk to the experts. May 22, 2021 / need rear diff torque specs - Diesel Place 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. 6 TO 10. PDF Rear Axle Torque Specs Chevy Silverado - annualreport.psg.fr 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. Torque measures the amount of force that is generated when the engine rotates at a certain speed. You can feel the power of all that torque in your bones as it propels the car forward even faster than before. Additionally, vehicles with higher torque have better control over their handling due to stronger low-end acceleration which makes them safer on roads and highways. Step 3: Back off 3/8-turn for automatic hubs, and just enough to free the bearing for manual hubs. With the pinion bearing properly lubricated, increase or decrease . I thought the pinion nut would be more like 50-75 FOOT pounds? So, when adjusting preload, if it is too loose then the shims should be removed. 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. The carrier bearing rides in the races and you will snap the bolt off before you warp or crack the races. 2429 Mercantile Drive Suite A This allows you to put the pinion gear in, set the pinion bearing pre-load, set the backlash and then run a contact pattern without the chance of compressing the crush sleeve too much. 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. Call 800.979.0122, 7am-10pm, everyday. Axle Retainer Plate Nuts: 3/8" Grade 8 - 45 ft lbs. All 8.6-inchrears have disc brakes, and 8.5-inch units have drum brakes. increments until rotating torque is achieved. 14 TO 19. Differential Set-Up Specifications | West Coast Differentials Inside the 8.2-inch 10-bolt, the ring-gear bolts have 9/16-inch socket heads with 3/8-24 left-hand threads. ISO torque spec for rear diff pinion shaft pin bolt - IH8MUD Forum 8-10 ft lbs: None: None: GM 12 Bolt Car: Torque: Lubricant: Thread Locker: Main Caps: OEM Housing: . GM: .035. The pinion diameter is 1.438 inches, and has 25 splines. The 8.5-inch 10-bolt rearend was used in cars and trucks over a wide range of years. That way, you dont unknowingly spend money on something you really do not want. We were lucky and had a desirable contact pattern on both the drive and coast sides of the gear teeth. How a GM 10-Bolt Differential Goes Bad. When it comes to Chevrolet rearends, its the 12-bolt that seems to get all the accolades. This ring and pinion setup guide is Copyright Crawlpedia.com - Please provide a link back to this page when copying. Typically, 10-bolt differentials are specific to a series of gears. 9 Minutes Read / The 8.5-inch 10-bolt rearend is hugely popular because aftermarket carriers and gears are easily interchangeable. Another way to tell the difference between an 8.2 and an 8.5 rearend is to pull the cover and look at the bolt holding the spider gear crosspin. Not only is this a wise financial decision for both parties involved, but it also shows how much Chevrolet values customer satisfaction and safety. There are other 14b axles out there - a 9.5" ring gear semi-float for one, and even a 11.5 . 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! It doesn't have to be hard, and we offer some tips to keep your car's finish in top shape. This ensures all parts remain tightly fitted together without any space between them, resulting in increased stiffness as well as reduced friction within the system as a whole. Products include ring and pinion sets, installation kits and axle shafts for GM, Ford, Chrysler, Jeep, and Toyota vehicles. The tension between the bearings of a crush sleeve is a very important factor in its performance, as it helps to ensure that the bearing stays correctly set and does not move or become misaligned. Locate a Sierra Gear & Axle Distributor near you. By following these steps carefully and precisely, you can ensure that your gear and carrier are set up correctly for optimal performance. Learn more about GM steering column identification, GM steering column lengths, and GM steering column compatibility. Sie Bear Caps FT. LBS; AMC 20 torque specs for a 7.5 10 bolt | S-10 Forum First mark the position of the nut with a chisel or other method so you can tighten it back to exactly the same place. How to Replace Pinion Seal & Yoke 1994-2004 Chevy S-10 Preloading a bearing eliminates the clearance, which increases stiffness and reduces friction. This process helps increase longevity of both the pinion gear and its tapered bearings while also providing optimal performance from both components at all times. 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 . Is that really all it takes? This assembly featured an 8.2-inch ring gear diameter as well as 28-spline axles which provided adequate strength for these vehicles. Then use lock-tight on the threads and tighten the nut back to where it was. 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. Pinion Nut (Solid Spacer) 28-Spline Pinion - 200 ft lbs. Ring gear bolts 65 foot pounds, bearing cap bolts 60 foot pounds. A higher engine power combined with more torque enables cars to accelerate faster while using less fuel - making it much more efficient and cost-effective in the long run. Most 8.2 factory covers also have the strangeprotrusionat the top. When riding a bicycle, the hardest gear available is sometimes necessary for tackling steep climbs and flats alike. How tight should a pinion nut be? How Much Hp Can Stock 5.3 Injectors Handle, What Kind Of Gas Does A Jeep Cherokee Take, Popping Noise When Accelerating And Braking. The date and location of manufacture coding changed in 1971. Speedway also offers the Economy Ring & Pinion Setup Tool we needed. 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. They say ignorance is bliss but I say it's just damn expensive. 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. 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 . As well as many other third member torque specs from Strange. These are considered highway gears that are good for top speed, not for off-the-line performance. Sure, you know whats in there and what it does but are you willing to tear into it and rebuild the differential? These are two pinion gears for the 8.5-inch 10-bolt. 14 bolt pinion preload crush sleeve eliminator install help? Tips For Rebuilding A GM 8.5" 10-Bolt Rear Differential If you installed a new seal, add 1 or 2 in-oz. Set the preload carefully (see "Set Up Specifications") so that the bearings will have a long life. 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. 2008 Sprinter 2500 170 - camper van. Ultimately, both engine power and torque play important roles in determining a cars performance capability as well as its overall efficiency. Speedway also offers the . MOPAR: 8.75" x 1.75" pinion: .090. . The pinion nut is designed to securely fasten the components together while also providing an effective seal against contamination from dirt, dust and other debris. Whilethe 10-bolt rearendslineage can be identified by the code stamps, which are usually on the passengers side axle tube, there are literally hundreds ofpotential codes for the three different 10-bolt rearend housings. A forum community dedicated to all General Motors truck owners and enthusiasts. But, did you know there is more than one style of 10-bolt rearend? Well show you what to look for in this buyers guide. While adjusting preload can provide some relief from overly-stiff or soft springs, ultimately you should replace the springs themselves if they dont provide the desired level of performance. There is no way to happiness.happiness is the way. BOP stands for Buick/Oldsmobile/Pontiac. For the street/strip car, the 10-bolt rearend is a great choice. GM 10.5" 14 Bolt: 20 to 35 in-lbs. Since it was so widely used, there is a better possibility of finding one of them at a salvage yard thanlocating a 12-bolt. 12 Bolt Rear Axle Torque Specs | It Still Runs Dana 60 Gear Installation - Strange Engineering In either case, it is important that this critical adjustment be performed correctly in order to avoid costly repairs or replacements down the line. when assembling the pinion into place, include the crush sleeve between the two pinion bearings. Crankshaft Pulley to Hub Bolts 37. . 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. Is a GM 10 bolt rear end good? Next remove the nut and change the seal. (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). 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. 1989 Toyota Pickup/3vze/R150F/Dual RF1A's/8.0 Detroit/8.0 Detroit/5" SAS/38 TSL'S. I also like to put some oil on the seal surface of the yoke to avoid tearing the new pinion seal. Ring Gear Backlash Ring Gear Bolts to Cast FT. LBS. If you find a rearend that uses a large spring perch like this, it is from either an X or F-Body. 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. West Coast Differentials stocks a complete line of light duty axle parts for Chevrolet, Chrysler, Dana, Ford, GM, Jeep and Toyota and more! 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. GM 10-bolt 8.5-inch Differentials | Hemmings PDF TORQUE-TENSION REFERENCE GUIDE - Fastenal This results in improved performance, longer life span and more efficient operation of the system. The reason why it's so hard to turn the pinion nut is because not only are you crushing the crush collar but you're also pressing the outer pinion bearing onto the pinion gear. GM 8.5" 10 Bolt / Ring & Pinion Gear Set w/ Master Bearing . Some guys even go to the trouble of making a set-up bearing so you dont have to press on and remove the pinion bearing to try different shims. Gm 10 Bolt Differential Torque Specs | caredcar.com 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. 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. 5 - 8 : Ring Gear Bolt Torque (Foot lbs) 120 : Bearing Cap Torque (Foot lbs) 135 : Pinion Nut Torque: Tighten as necessary to obtain correct preload: Pinion Bearing Retainer Torque (Foot lbs) :65 : . That does not describe how tight the pinion nut needs to be however. For inquiries about our products and services, please fill out the form below. 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. This gives us confidence in the quality of the parts we sell. LBS. Like all Chevy 10-bolts, the axles are retained by C-clips on the inner end of the axle shaft inside the carrier. It is essential to ensure that the pinion flange is firmly held in place with a fixture or tool. Differential Torque Values | In4x4mation Center - Morris4x4Center 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. You can simulate pinion bearing preload by tightening the pinion nut until the proper amount of drag is felt with only motor oil on the pinion . for new bearings. The 8.5-inch 10-bolt also shares the same pinion shaft diameter as the more expensive 12-bolt. Automotive Torque Specifications by Model - TorkSpec - Knowledge for Randy Bolig has been working on cars and has been involved in the hobby ever since he bought his first car when he was only 14 years old. Next, attach the pinion nut onto the end of the shaft and use a torque wrench to tighten it to between 110-125 ft/lbs of torque. First I measured the old crush sleeve as a starting point. 8-Inch Ford Rear End Torque Specifications | It Still Runs 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. I like to measure the old crush sleeve and machine down a solid pinion spacer to that dimension and then . We promise not to use your email address for anything but exclusive updates from the Power Automedia Network. stock 4L60E on 5th filter/fluid change; 2nd set of drive shaft u . Fords small block and big block engine families have their share of flexplate differences. Pinion Seal Replaced: Pinion Nut Torque Q? | LS1GTO Forums I got the price for the seal, and it is near $9. Step 1: To seat, torque nut to 50 (lb-ft) while . If it checks out you can put your axles back in, C clips on, cross pin and bolt and you are ready to put the cover on and fill it with rear end lube! While backlash is a necessary component of manufacturing tolerances, it can be a significant source of problems for certain applications. This is very important, because if you go too far the crush sleeve will be ruined. you have it pretty much. The 14 Bolt Bible | Pirate 4x4
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