Our LS swap adapter kits make it easy! Record pinion flange rotating torque, with a torque wrench. Nut secures driveshaft yoke to pinion gear. Locate a Sierra Gear & Axle Distributor near you. 7/16" x all lengths 60-65 ft lb. We talked to a few of our in-house race experts about ways to make this racing season your best one yet! 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. Mine is leaking. 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 technology is particularly advantageous in improving vehicle handling and traction under all types of driving conditions, from wet roadways to tight turns. Crawlpedia is an off-road encyclopedia featuring a complete list of proper ring and pinion gear set up torque and backlash specs. You can rest assured knowing that your axle is secured with this high quality product. So, in order to adjust the pinion bearing pre-load, shims of varying thicknesses are inserted into pre-load retainers. I like to slowly tighten the new pinion nut until I take up all of the front to back free play. 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 . All 8.6-inchrears have disc brakes, and 8.5-inch units have drum brakes. 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. grade 8. FSM says 181-325 ft-lbs. Next we disassembled everything, starting with the cross pin bolt, cross pin and C clips. Fords small block and big block engine families have their share of flexplate differences. 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. 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. A 2.6-3.0 gear ratio range is perfect for flat places and most people find this ratio suitable for their needs. I don't use it on the bearing cap bolts. If you find a rearend that uses a large spring perch like this, it is from either an X or F-Body. There were an untold number of 8.2-inch axle assemblies built, and although it is only marginally stronger than the 7.5-inch rearend, it does have some aftermarket support. While deciding on the ideal gear ratio for your bike, it's important to consider that a lower value will provide more comfortable pedaling, as you'll be able to spin the pedals at a higher cadence. When it comes to suspension, preload is an important factor. Once the specified preload has been obtained, make sure the bearings are seated by rotating the pinion several times. Sierra Gear & Axle parts are designed and engineered to the highest quality specifications for use in street, off-road and performance environments. When working on the assembly of a differential, there are two methods for adjusting the pinion depth. extended cab crew cab p 14 8 6 gm rear axle specifications 10 bolt cont, what are the torque specs on silverado rear diff cover you need rear axle pinion nut torque specs for a 98 chevy 12 ton pickup 2wd the nut is generally torqued to 260 300 ft lbs or 25 inch, proper torque specs for 2002 chevy silverado 1500 44 hub assembly to steering . Most 8.2 factory covers also have the strangeprotrusionat the top. Call 800.979.0122, 7am-10pm, everyday. Setup Specifications. Race-spec ring and pinion gears for desert racing, rock bouncing, and rock . I have a 1993 Suburban K1500. EDLANTA there is a "crush" spacer between the two pinion bearings that when tightened properly gives you the proper bearing preload. Received 16 Likes on 13 Posts. The 7.5 rearend uses an oval cover and the housing has two small cast-in protrusions near two of the bottom cover bolts. Known alternatively as the GM 8.875-inch (referring to its ring gear diameter), Chevrolet's 12-bolt rear end is one of the most celebrated in the American hot-rodding scene. 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 Series 3 carriers are good for use with 2.73 and lower gears (numerically higher), so 3.08 and 3.73 gears work well. Sometimes when repairing or replacing components within a transmission, you may encounter a crush sleeve. Gear Ratio Calculator - Calculate the gear ratio of gears based on their tooth count. First introduced in 1970 as a corporate replacement for the older 8.2-inch 10-bolt or 12-bolt 8.875-inch axles, its popularity quickly spread to nearly every GM division aside from Cadillac throughout the 70s. Once you give everything a thorough inspection you can begin the re-assembly process. to do this. Ring and Pinion Ratio Variations - An explanation of why some ring and pinion gear ratios vary. It also uses a 10 5/8-inch irregular-shaped cover. It also uses a 10 5/8-inch irregular-shaped cover. 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. The side bearing preload is the difference of preloads (5) x the gear ratio (3.73) = 18.65. The unique design and shape make installation easier while providing ample strength for off-road applications. By following these steps carefully and precisely, you can ensure that your gear and carrier are set up correctly for optimal performance. There are other 14b axles out there - a 9.5" ring gear semi-float for one, and even a 11.5 . Speedway also offers the . CRAWLPEDIA Off-Road Encyclopedia. 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. Torque Specs on Dana 60. Ring Gear Bolt Torque (Foot lbs) (N.m.) Bearing Cap Torque (Foot lbs) (N.m.) AMC; Model 15 : 20 - 40 (2.3 - 4.5 ) . 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. and 12 bolt #s. found these #s at Richmond Gear: Torque specifications. This gives us confidence in the quality of the parts we sell. The PYN10 is a 30 spline pinion nut designed for this purpose, and it is specifically made to be used with vehicles that have a 30 spline pinion in their 10-bolt 8.5" rear end assembly. 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. Over 6,000 Automotive Torque Specs. 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. After that we removed the old bearings and cleaned all the parts up in the solvent tank. The distinction between these two types of torque can be useful for assessing how well a car will perform in different situations: cars with higher levels of low-end torque are typically better suited for starting from standstill or accelerating quickly; whereas cars with greater amounts of high-end torque are likely more suitable for reaching faster top speeds over long distances. 2429 Mercantile Drive Suite A You will need to know that there are different series of differentials (seriestwo and three). If youre looking for a good.economical 10-bolt rearend to rebuild or install into your hot rod, you will need to be able to accurately identify thedifferent units so you dont accidentally come home with a 7.5 or 8.2-inch differential. 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! Products include ring and pinion sets, installation kits and axle shafts for GM, Ford, Chrysler, Jeep, and Toyota vehicles. It is robust enough to withstand any punishment inflicted on it by racetrack use. 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. Axle Images: Axle Details. 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. 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. in order to compensate for the drag of the new seal, the nut should be tightened more until the rotational torque of the pinion slightly exceeds what was recorded earlier, but not by more that 5 in/lbs. Yukon Gear's Pinion Nut makes any job more efficient by ensuring your parts remain secure while providing superior protection from contaminants. Sure, you know whats in there and what it does but are you willing to tear into it and rebuild the differential? The 8.5-inch and 8.6-inch 10-bolt rears are stout and effective differentials that can handle more power than either the 7.5 or 8.2-inch rears. 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. The torque it takes to crush . 6 TO 10. 3/8" x all lengths 45-50 ft lb. 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. 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 : . After it has been properly crushed (by checking the rotating resistance of 19-22 inch pounds on the pinion) there should be at least 150 pounds torque on the pinion nut (or else you pull it apart get another crush sleeve and start over). That is theimpetus for why we decided to put this swap meet/junkyard identification guide together. Use the blue medium strength on the retaining bolt and the red on the others. 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. Bear Preload IN. Search Car Torque Specifications by Engine or Model Inside the 8.2-inch 10-bolt, the ring-gear bolts have 9/16-inch socket heads with 3/8-24 left-hand threads. It is important to note that if possible, it is best practice to use an old or used pinion nut for this operation, as new ones can often bind when tightened too much. If in doubt, consult our staff of differential parts specialists. 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. These are considered highway gears that are good for top speed, not for off-the-line performance. It is important to keep in mind that this can change dramatically based on specific materials used or other variables so it is critical to be sure to consult any instruction manual included with your differential cover before attempting any installation. Step 3: Back off 3/8-turn for automatic hubs, and just enough to free the bearing for manual hubs. 1989 Toyota Pickup/3vze/R150F/Dual RF1A's/8.0 Detroit/8.0 Detroit/5" SAS/38 TSL'S. 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. CAP TORQUE. The "feel" people are way more experienced that you or I so the top one is re-commended. GM 8.875" 12 Bolt Differential Ring Gear and Pinion Set.