GM 8.5 10 bolt - 10 bolt cover with 8.5 ring gear. Connecting Rod Cap Nuts 38. I like to slowly tighten the new pinion nut until I take up all of the front to back free play. We'll send you the most interesting Chevy Hardcore articles, news, car features, and videos every week. 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. 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. IMPORTANT: The pinion preload should be at or below 4 Nm (35 inch lbs.) I will attempt to cover the necessary steps in building a differential for a GM 10 bolt rear end with an 8.5/8.6 ring gear. 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. I also like to put some oil on the seal surface of the yoke to avoid tearing the new pinion seal. Replace original worn or damaged nuts each time a gear set is changed. 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. But for all intents and purposes, the 10-bolt rearend is a great unit for a street/strip car, and can be stout enough to handle even the occasional abuse delivered by use at the racetrack. Our custom-length driveshaft kits make it a breeze to get the perfect 67-72 C10 driveshaft length. Cover Bolts: 25 ft lbs. Sierra Gear & Axle parts are designed and engineered to the highest quality specifications for use in street, off-road and performance environments. PINION NUT GM 7.5 8.5. The pinion nut should also measure 1 1/8 inches, if the OEM pinion nut is still in use. The 12-bolt is generally considered to be the stronger of the two rear axles. It first appeared in 1970 production cars as a corporate replacement for the 8.2-inch 10-bolt rearend. 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! Here are the thin shims from the Summit crush sleeve eliminator. Find the torque thats on it before hand and tighten it down to that afterwards. 10.50 PINION NUT: GM . CRAWLPEDIA Off-Road Encyclopedia. The 7.5 rearend uses an oval cover and the housing has two small cast-in protrusions near two of the bottom cover bolts. I have seen the ring gear bolts, pinion nut and retaining bolt come loose, but never a bearing cap bolt. He is resurrecting a G-Body Chevy Monte Carlo and decided to reuse the original 3.73 gears and a factory GM posi unit. Backlash refers to the distance between two mating gear teeth when they are not engaged. Oct 20, 2011. Free Shipping - Yukon Gear & Axle Crush Sleeve Eliminator Kits with qualifying orders of $99. It is internally different from the 8.2 Chevy, but has the same external bosses and brackets. It saved me time and effort trying to crush a brand new crush sleeve. This is very important, because if you go too far the crush sleeve will be ruined. This will help ensure that there isn't an excess of tension on these components, which can lead to premature wear or even failure. 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. Carrier Cap Bolts. Since listing them all within this article is impossible, well be focusing only on visual identification. 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. We were lucky and had a desirable contact pattern on both the drive and coast sides of the gear teeth. Tightening Torque Clamp Load 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. The pinion diameter is 1.438 inches, and has 25 splines. SPEC Clutches: For That Next Engine Swap Or OEM, Shop Tour: Brian Tooley Racing Expands To Be A One-Stop, Moroso Anti-Roll Kit Is The Right Tool For The, Steer Your Classic Ride Straight With A New CPP Steering, NEW LS Bellhousing For Magnum And T56-Shifted Hot, Fenix Is A Next-Gen 69 Camaro With 1,180, A Brothers Quarrel Results In This Fine 1955 Chevy, Is This Barn Find The Worlds First Corvette? Quaility Gears provide guaranteed performance. Then use lock-tight on the threads and tighten the nut back to where it was. Torque measures the amount of force that is generated when the engine rotates at a certain speed. Use oil on the pinion nut washer surface during all assemblies . Part Number. Ring gear bolts 65 foot pounds, bearing cap bolts 60 foot pounds. . I've put a rachet strap to the axle, hit it with a hammer prayed from the inside but it won't budge enough for the c clip to clear the spider gear. Find the application and ratio you need? JavaScript is disabled. There are other 14b axles out there - a 9.5" ring gear semi-float for one, and even a 11.5 . 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. 14 bolts and 10 bolts are different, not sure about changing seals though. The 8.5-inch 10-bolt also shares the same pinion shaft diameter as the more expensive 12-bolt. 6 TO 10. Max Ellery's Land Cruiser Repair Manual 1969-1990 (FJ & RJ) Unfortunately, once this tension has been released the crush sleeve cannot hold it again. Ultimately, both engine power and torque play important roles in determining a cars performance capability as well as its overall efficiency. There are several differentials for the 10-bolt rearend. Axle Retainer Plate Nuts: 3/8" T-bolts - 30 ft lbs. Although the 7.5-inch 10-bolt closely resembles the 8.5-inch housing, you can positively identify the Chevy7.5-inchrearend by measuring it. Talk to the experts. Many times when you are rebuilding an existing rear end you want to save the original pinion bearing shim and re use it under the new bearing. 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. Edit: By reducing the amount of free play between components, preloaded bearings can provide greater accuracy and quieter operation than standard ball bearings with clearances. With one nut per package and a 7/8-16 thread size, this pinion nut is made from strong steel and has a sleek black finish for a nice look. 1989 Toyota Pickup/3vze/R150F/Dual RF1A's/8.0 Detroit/8.0 Detroit/5" SAS/38 TSL'S. This heavy-duty nut is made with high quality materials and manufactured to exacting standards, ensuring it stands up to whatever you throw at it. Not only does a torque vectoring differential perform the same basic tasks as a regular differential, but it also has an extra element that sets it apart: its ability to transfer torque between the left and right wheels independently. It has to be drained to get a peak inside. Originally, gear ratios ranged from 2.41 through 4.10. Pinion Nut (Solid Spacer) 28-Spline Pinion - 200 ft lbs. With this pinion nut, you can rest assured that your vehicle will be ready for whatever terrain comes its way! 9 Minutes Read / One will want to torque the pinion nut to 190- 240 ft lbs (Small Diff's) D60 and larger 225 -350 Ft lbs with the proper preload achieved. Gear oil is nasty stuff, mostly in smell. I have a 1993 Suburban K1500. Rancho Cordova, CA 95742, Bearing Preload, Backlash and Torque Specifications. All 8.6-inchrears have disc brakes, and 8.5-inch units have drum brakes. 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. High-Performance Differentials, Axles & Drivelines, How to Measure and ID Differetial Housings, Filling Trim Holes in Car Body: Sheet Metal Welding Tips, Q&A With Our Race Experts: Tuning and Maintenance Tips, Small Block and Big Block Chevy Engine Flexplate Guide, How to Adapt LS Engine to 700R4 or Turbo 350 Transmissions, Chevy C10 Driveshaft Length Measuring Guide, GM Steering Column Compatibility, Interchange & Repair Guide. Alternatively, shims can also be used to adjust the pinion depth. 2/3 drop, HP Tuned, Built 60e, 4.10s, Yukon Duragrip, etc. With the exception of truck differentials with 30-spline axles, andthosecarrying 2.41 and 2.73 gears (series two), the differentials will support all gear ratios without having to change carriers. 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. 14 TO 19. Install left-side adjusting nut lock, washer, and bolt. To ensure optimal performance in any application, it is essential to pay close attention to the amount of backlash between gears on all differentials. This is especially true when it comes to cycling. 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. We have your differential parts in stock ready to ship today. 1988 C1500 Silverado, 5.7L with some go fast parts. Our stock 10-bolt was plenty stout to withstand the torture of 165 hp from the ZedSled's stock 350 (yes, that was sarcasm), but we're looking down the barrel at 500 hp from our cammed-up 6.0 swap . and 12 bolt #s. found these #s at Richmond Gear: Torque specifications. 8 & 9 BOLTS Locknut Size Threads per inch Steel Hex Locknut Steel Hex Flange Nut Grade C FNL Grade 9 Grade F Grade G Clamp Load (lbs.) 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. 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. Upgrade your cam, intake, headers, stall converter, and the list goes on from there. PINION PRELOAD NEW INCH LBS. How a GM 10-Bolt Differential Goes Bad. We look forward to serving you! The OEM pinion nut is 1 1/4 inches. That way, you dont unknowingly spend money on something you really do not want. Over 6,000 Automotive Torque Specs. 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. Torque Specs on Dana 60. These are incredibly robust pieces of machinery that can handle a surprising amount of power, as long as you use the right axle for your application. ft. When the preload of the pinion bearings is incorrectly adjusted, it can have serious consequences. Sierra Gear & Axle parts are designed and engineered to the highest quality specifications for use in street, off-road and performance environments. I then assembled the pinion, inner bearing, shim pack in the carrier then pressed on the outer bearing using a 20 t press then installed the yoke washer and nut. These basic steps should pertain to most GM rear differentials and if followed with leave you satisfied for many miles. 8-11 in/lbs for broken in bearings is acceptable. 2. unbolt pinion nut. If you are installing an axle and need to know the torque specs, it is important to first understand what torque is. Failure to apply enough preload on the bearings can have an adverse affect on gear contact patterns. These are considered highway gears that are good for top speed, not for off-the-line performance. 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. Allstar Pinion Nut GM 7.5 8.5 ALL72156. Once the specified preload has been obtained, make sure the bearings are seated by rotating the pinion several times. 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. GM: .035. 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. Good luck finding one of these, however, as they are very popular among performance enthusiasts. They say ignorance is bliss but I say it's just damn expensive. What size is pinion nut Silverado? Next remove the nut and change the seal. 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. The 8.5-inch pinion diameter is 1.625 inches, whereas the 8.2-inch is smaller at 1.435 inches. The side bearing preload is the difference of preloads (5) x the gear ratio (3.73) = 18.65. Determining the correct flexplate for your V8 Mopar-powered project takes a little understanding of how these engines were balanced. 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. 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. Before disassembly, we marked the bearing caps and kept the side bearing shims on the correct side. Not only is this a wise financial decision for both parties involved, but it also shows how much Chevrolet values customer satisfaction and safety. Zone 1.5 BL, 22x12s, California delete, Detroit TrueTrac, etc. I was able to pull the old crush sleeve from the pinion gear shaft without damaging it, so I just reused it and added a 0.51mm shim to it. For inquiries about our products and services, please fill out the form below. The unique design and shape make installation easier while providing ample strength for off-road applications. What is the gear ratio on a 10 bolt rear end? The PYN10 pinion nut has been specifically designed to fit 30 spline pinions and provide a secure fit and lasting performance. You have to do it a little differently though. When in doubt, refer back to step #6 for more information about suggested torque specs for your particular axle installation project. Back off left-side adjusting nut approximately 2 slots. 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 . Rightfully so, because when comparing the 10 and 12-bolt units, its definitely the more durable of the two. 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. If it takes a 5/16-inch wrench to remove it, its an 8.5. TORQUE-TENSION REFERENCE GUIDE Printed in U.S.A. Supply Part Number: 9702365 AS 06/14 Torque Poster . It is essential to ensure that the pinion flange is firmly held in place with a fixture or tool. if it is under twents hold the yoke with a pipe wrench and tighten just a little at at time till the torque wrench reads a constant 20 inch pounds for the revolutions. Sometimes, pinion bearing preload can be a tricky procedure. It doesn't have to be hard, and we offer some tips to keep your car's finish in top shape. Its strength and reliability have been proven time again, making it an excellent option for drivers looking for reliable performance from their vehicle. In this context, "hardest gear" refers to the ratio of front sprocket teeth to rear sprocket teeth - typically expressed as 4.55:1. First I measured the old crush sleeve as a starting point. Ring gear bolt torque: 110 ft*lb. The 8.5 rearend will have a round cover, and part of the cover will extend rearward to make room for the ring gear. With the pinion bearing properly lubricated, increase or decrease . Mine was a pita. With its superior strength and durability, you can count on your PYN10 pinion nut to remain securely in place for years of reliable service. #5. for a ten bolt rear it should be about 20 inch pounds while you are turning the torque wrench. Products include ring and pinion sets, installation kits and axle shafts for GM, Ford, Chrysler, Jeep, and Toyota vehicles. Gear Ratio Calculator - Calculate the gear ratio of gears based on their tooth count. GM 8.875" 12 Bolt Differential Ring Gear and Pinion Set. Now that we know our pinion depth shim is correct we can do the final assembly. Step 2: Back off, then torque to 35 (lb-ft) for automatic hubs,or 50 (lb-ft) for manual hubs. . When a very slight increase in pinion turning effort is noted, check the pinion rotating torque using an inch-pound torque wrench. 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. We will safeguard your e-mail and only send content you request. 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. The axle shafts are also held in place by four-bolt retainer plates at the outer bearing, not C-clips. when assembling the pinion into place, include the crush sleeve between the two pinion bearings. It was in the 30-35 I "think" from GM. Are all GM 10 bolts the same? Use the blue medium strength on the retaining bolt and the red on the others. :yipi: Thats it?? The date and location of manufacture coding changed in 1971. When it comes to adjusting the backlash of your vehicle's pinion gear and carrier, there are a few rules of thumb to keep in mind. 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. It's not easy, but pushing yourself can be rewarding; after all, with hard work come great rewards! 8 to 11 in-lbs. Some vehicles require an 8.5" 10-bolt pinion nut to secure the rear axle assembly of their vehicle. This is in contrast to high-end torque, which describes how much power and force is produced by an engine at higher RPMs, such as 4000 or 6000. The torque required to seat the nut is very large, possible 200 ft-lbs or more. 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. I have a 2001 2500 HD. .006" to .010" 120 ft-lbs. 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. 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. 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. The correct way to do this is to use the yoke lock (part of the setup tool kit we bought) and use a breaker bar with a cheater pipe. 3. remove yoke from splines. We believe that our exceptional customer service and product knowledge is what sets us apart from the competition. . lbs.) Skip to main content. 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. On the other hand, if preload is too tight then you'll need to take out the pinion gear and add extra shims in order to reduce bearing pressure against the races. 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. OEM bolts have thread locker on the threads. Build your own custom newsletter with the content you love from Chevy Hardcore, directly to your inbox, absolutely FREE! This is zero backlash. You will need a torque meter in inch-lb. First mark the position of the nut with a chisel or other method so you can tighten it back to exactly the same place. Fords small block and big block engine families have their share of flexplate differences. 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. It said you want this to be from 5-35. 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. I don't use it on the bearing cap bolts. big gear head. 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. 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. While backlash is a necessary component of manufacturing tolerances, it can be a significant source of problems for certain applications. The 8.2-inch 10-bolt has a smooth, round, lower-case area (no cast-in protrusions), with an 11-inch cover that has a diagonalprotrusion at the top. A forum community dedicated to all General Motors truck owners and enthusiasts. Follow along as Zach works over the old 10 bolt and brings it back to life. The Fora platform includes forum software by XenForo. 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. Speedway also offers the . Come join the discussion about performance, lift kits, wheels, tires, modifications, troubleshooting, maintenance, and more! Usually, when people are discussing gear ratios, theyre referring to the relationship between a pinion gear and a spur gear. Mine is leaking. 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. How to eliminate unwanted to holes in your car's body, trunk, floor, or firewall with easy to use patch plugs from Speedway Motors. The engine roars and the tires dig into the pavement as they work to move your car forward, pushing you back into your seat with tremendous force. 1. The carrier bearing rides in the races and you will snap the bolt off before you warp or crack the races. Introduction. This procedure is necessary in order to ensure that everything within the drivetrain is working correctly and efficiently. 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 . Try our Differential Gear Calculator. Our Mopar flexplate buyers guide will help. Ford 9 inch Torque Specs for Ford 9 inch center Section torque specs. 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. Lifted78Chevy. 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. 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. Is that really all it takes? If your mom is lunch, then yes, I've eaten lunch twice today. ExtCab96S_Dime . 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! Give us a try, we think you'll be glad you did! The pinion nut needs to be torqued to 250 ft/lbs. 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. 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. CHECK FREQUENTLY as you progressivley tighten the pinion nut. Come join the discussion about Silverados, Sierras, and other full size trucks performance, modifications, suspension, lift kits, tires, maintenance, and more! If you're looking to get the most out of your pickup truck, you may want to consider changing the gear ratios. LBS. Unfortunately, unless you have the two units side by side, it is nearly impossible to tell them apart. That does not describe how tight the pinion nut needs to be however. 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.

Travis Campbell Son Of Glen Campbell, Examples Of Stretch Goals In Healthcare, Guilty Gear Strive Sol Matchups, Tennessee Banned Books List, Articles P