This method works every time is done precisely as described. Edit: Our Mopar flexplate buyers guide will help. Yukon Gear & Axle SK CSGM8.5 Yukon Gear & Axle Crush Sleeve Eliminator Kits | Summit Racing. The pinion diameter is 1.438 inches, and has 25 splines. But, did you know there is more than one style of 10-bolt rearend? 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. Or some do it by feel. 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. If you locate a rearend that has coil spring perches, it could be from a G, A, B-body, or El Camino. Furthermore, its thread size of 1 7/16"-20 makes it compatible with nearly all GM style rear ends from 1955 to present day models. Over 6,000 Automotive Torque Specs. With the pinion bearing properly lubricated, increase or decrease . Lighter and more efficient than its Ford 9-inch and Dana 60 rivals, the 12-bolt enjoys as much use amongst brand-loyal off-roaders as it . PINION PRELOAD NEW INCH LBS. FORD: .020. stock 4L60E on 5th filter/fluid change; 2nd set of drive shaft u . Not only is this a wise financial decision for both parties involved, but it also shows how much Chevrolet values customer satisfaction and safety. lbs. on new bearings, or 1.2 Nm (10 inch lbs.) Differential cap bolt torque: 90 ft*lb. 8-Inch Ford Rear End Torque Specifications. We started by getting a rebuilt kit from Motive Gear . This is all with the old crush sleeve. Would this be the same How to write up for my truck? The reliability of the axle tube and . Some vehicles require an 8.5" 10-bolt pinion nut to secure the rear axle assembly of their vehicle. This is done in order to decrease pre-load on the bearings; adding more shims will have an overall effect of decreasing it. It is essential to ensure that the pinion flange is firmly held in place with a fixture or tool. From there I make very minute changes, checking the pre load with the inch lb torque wrench several times. 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. GM 10.5" 14 Bolt: 20 to 35 in-lbs. Ford 9 inch torque specs; Gear Ratio Calculator; Order Forms. you have it pretty much. Save Share. This one is not as easy as it sounds. GM 8.6" gears will fit GM 8.5" axles and as such have become the universal aftermarket size for both. MOPAR: 8.75" x 1.75" pinion: .090. . 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.) The number of teeth on each of these gears determines how much rotational force is converted into torque or speed. 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. Good info on this site from what I've seen so far, kudos. This versatility makes it a great choice for those who want to take their car from the street to the track without worrying about its durability. Inside, the ring-gear bolts are the same as the 8.5 corporate unit, but the pinion-shaft diameter measures 1.438 inches. 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. 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. Sometimes, pinion bearing preload can be a tricky procedure. 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. Rancho Cordova, CA 95742, Bearing Preload, Backlash and Torque Specifications. 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. The 8-inch rear axle looks very much like the popular Ford 9-inch rear axle. Well help you determine the correct flexplate for your Chevy engine in this buyers guide. The covers on the 8.5-inch rearends are often 11 inches round with a bulge on the drivers side to accommodate the ring gear. Allstar Pinion Nut GM 7.5 8.5 ALL72156. An 8.2 (shown) will have the same contour as the cover. The rotational torque spec is between 15-19. 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. These basic steps should pertain to most GM rear differentials and if followed with leave you satisfied for many miles. 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. 2429 Mercantile Drive Suite A, Rancho Cordova, CA 95742, Copyright 2023 West Coast Differentials | Website Design by. To do this, measure 10 thousandths of an inch on the shim and shift it accordingly. We show you how to keep that old GM transmission when swapping in an LS engine. 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 . It is estimated that this specific axle saw use on over 11 million vehicles during its reign of production making it one of the most popular axles ever created by GM for their consumer market line up. 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. With this pinion nut, you can rest assured that your vehicle will be ready for whatever terrain comes its way! When combined with a low curb weight, this combination creates acceleration so fast it feels almost supernatural. Once properly secured in place, you should have no further issues with your pinion nut installation. CAP TORQUE. Alternate Description. ALL72156. Introduction. There are several differentials for the 10-bolt rearend. These have been around since 1975, and were installedunder cars, small trucks, and vans up to the 2005 model year. There is an anomaly to the corporate 8.5-inch axle assembly that was used in some 1971 and 1972 Buick, Oldsmobile, a few 1969 through 1972 Pontiac vehicles, as well as the 1970 through 1972 Monte Carlo. Learn more about GM steering column identification, GM steering column lengths, and GM steering column compatibility. Sierra Gear & Axle parts are designed and engineered to the highest quality specifications for use in street, off-road and performance environments. Dana 60. 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. When it comes to suspension, preload is an important factor. 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. It's not easy, but pushing yourself can be rewarding; after all, with hard work come great rewards! Part Number. Like the 8.2-inch 10-bolt, the 8.5 10-bolts use C-clips to retain the axles. Crankshaft Main Bearing Cap Bolts 70. . RING GEAR TORQUE FOOR LBS. The 8.5 rearend will have a round cover, and part of the cover will extend rearward to make room for the ring gear. Replace original worn or damaged nuts each time a gear set is changed. 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. Ring and Pinion Ratio Variations - An explanation of why some ring and pinion gear ratios vary. All 8.6-inchrears have disc brakes, and 8.5-inch units have drum brakes. 14 bolts and 10 bolts are different, not sure about changing seals though. . 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. Ring Gear Bolt Torque (Foot lbs) (N.m.) Bearing Cap Torque (Foot lbs) (N.m.) AMC; Model 15 : 20 - 40 (2.3 - 4.5 ) . By Albert. 3/8" x all lengths 45-50 ft lb. with an impact. Pinion preload (new bearings): 17 - 30 in*lb. 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. Follow along as our employee Zach installs a GM 10 bolt rebuild kit from Motive Gear. 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 . We were lucky and had a desirable contact pattern on both the drive and coast sides of the gear teeth. You can replace the pinion seal without changing the crush sleeve. We believe that our exceptional customer service and product knowledge is what sets us apart from the competition. Currie 44 : Torque: Pinion Nut (Solid Spacer) 250 ft lbs. 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. 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. 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. Backlash refers to the distance between two mating gear teeth when they are not engaged. By following these steps carefully and precisely, you can ensure that your gear and carrier are set up correctly for optimal performance. 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. This distance must be precise; if it is too small, the gears will bind together and cause mechanical stress which can lead to premature wear or failure. For a better experience, please enable JavaScript in your browser before proceeding. Setup Specifications. 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. 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. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. GM 8.6" differentials can be installed in a GM 8.5" axle with the proper conversion bearings. 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 . I have a 2004 Chevy Silverado 1500, 4.8L engine, 4x4, single cab, 6' bed, what are the torque specs for the drive shaft bolts that bolt the drive shaft into the rear end yolk? Check the pinion preload by rotating the pinion with a torque wrench. The 8.5-inch 10-bolt rearend was used in cars and trucks over a wide range of years. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. For a better experience, please enable JavaScript in your browser before proceeding. This procedure is necessary in order to ensure that everything within the drivetrain is working correctly and efficiently. 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. This is especially true when it comes to cycling. If too tight, the bearings become overstressed and will fail prematurely, causing a catastrophic failure of both the ring and pinion gears. Thanks Mike, Id appreciate it. Unfortunately, you cannot rely on this torque because the crush sleeve provides unpredictable and non-linear resistance as it buckles and crushes. I got the price for the seal, and it is near $9. Upon initial . GM 14 Bolt Specs (all data for SRW truck 14 Bolt axle - others may vary - see table on "different 14 bolts" below) . Free Shipping - Yukon Gear & Axle Crush Sleeve Eliminator Kits with qualifying orders of $99. Gear oil is nasty stuff, mostly in smell. 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. 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. Use the blue medium strength on the retaining bolt and the red on the others. We pressed the new bearings onto the carrier and the front pinion bearing and went ahead and put the assembly together into the housing. CHECK FREQUENTLY as you progressivley tighten the pinion nut. 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. This heavy duty nut has been designed using high grade steel and features a zinc plated finish for maximum protection against rust and corrosion. . With proper maintenance, this rearend will hold up over time and ensure that your vehicle runs smoothly no matter what sort of conditions you put it in. Increasing the size of the pinion or decreasing the size of spur gear will result in increased top speed for your vehicle; however this will come at cost to acceleration and increase temperatures from increased load. The Fora platform includes forum software by XenForo. 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. When it comes to Chevrolet rearends, its the 12-bolt that seems to get all the accolades. I have a 1993 Suburban K1500. Either way, the nut should be tightened to produce 24-32-in-lb of torque to turn the pinion . Backlash arises when two gear teeth mesh together in order to transmit power from one shaft to another; the teeth need some play to avoid jamming and ensure smooth operation. . When in doubt, refer back to step #6 for more information about suggested torque specs for your particular axle installation project. It is therefore important to strike a balance by carefully adjusting the backlash so that it meets manufacturer requirements for that particular differential system. Bearing Cap Torque (Foot Lbs.) The "feel" people are way more experienced that you or I so the top one is re-commended. Good luck finding one of these, however, as they are very popular among performance enthusiasts. Search Car Torque Specifications by Engine or Model 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. That way, you dont unknowingly spend money on something you really do not want. 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. By Albert. I don't use it on the bearing cap bolts. This is very important, because if you go too far the crush sleeve will be ruined. Pinion Bearing Preload (New) (inch/lbs) Pinion Bearing Preload (Used) (inch/lbs) Backlash (.001 in) Ring Gear Bolt Torque (Foot lbs.) 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. Crawlpedia is an off-road encyclopedia featuring a complete list of proper ring and pinion gear set up torque and backlash specs. #5. 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! range. 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. It doesn't have to be hard, and we offer some tips to keep your car's finish in top shape. without any detrimental effects occurring. If youre building a street car and want to improve performance, we all know the drill. This should result in approximately 7 thousandths of an inch adjustment in terms of backlash. Ring Gear Backlash Ring Gear Bolts to Cast FT. LBS. Follow along as we show how to measure and install a C10 one piece driveshaft. For inquiries about our products and services, please fill out the form below. However, when you have new gears, a new posi unit, and other variables like mixing housings with differentials you might have to try multiple shims to get a good pattern. I used an 1/4" inch-lb torque wrench with two adapters and a 1 1/16" socket to check the preload. 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. Since it was so widely used, there is a better possibility of finding one of them at a salvage yard thanlocating a 12-bolt. For that reason,many enthusiasts are considering the 10-bolt. It also uses a 10 5/8-inch irregular-shaped cover. This gives us confidence in the quality of the parts we sell. 7/16" x all lengths 60-65 ft lb. 14 TO 19. Install left-side adjusting nut lock, washer, and bolt. When changing a ring & pinion and doing final install of pinion there is no torque spec on the pinion nut itself. 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. 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. 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. I used an 18" breaker bar with a 2 foot pipe on the end of it in order . Many mechanics use an impact gun while others insist the nut should be torqued by hand. Its strength and durability make it an ideal choice for those who want to take their car out for some fun on the track without having to worry about its performance or reliability. Speedway also offers the . Well show you what to look for in this buyers guide. Upgrade your cam, intake, headers, stall converter, and the list goes on from there. Tighten to 8 ft-lbs (10 N-m), then tighten an additional 1/3 turn to at least 37 ft-lbs (50 N-M). 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. We will safeguard your e-mail and only send content you request. checking the pre load with the inch lb torque . Products include ring and pinion sets, installation kits and axle shafts for GM, Ford, Chrysler, Jeep, and Toyota vehicles. So, when adjusting preload, if it is too loose then the shims should be removed. Here's a link to when I did mine. Thats usually proven when used in high-performance, high-horsepower applications. You can use this instead of the crush sleeve. 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. Continue tightening the pinion nut to collapse the spacer and preload the bearings. To reach an accurate level of tension or preload, experience and expertise are usually required when dealing with this type of repair work. BACK LASH 0.000". It is not an uncommon sight to see a Yukon Gear Pinion Nut when it comes to automotive repairs. Both axles use a third member that contains the differential, which is made up of the . There is no way to happiness.happiness is the way. What size is pinion nut Silverado? With the carrier removed w/ new bearings pinion bearing preload should measure a rolling torque of 20-30 in/lbs. EDLANTA there is a "crush" spacer between the two pinion bearings that when tightened properly gives you the proper bearing preload. IMPORTANT: The pinion preload should be at or below 4 Nm (35 inch lbs.) This is a metal spacer, usually made of brass or aluminum, that is used to put tension between the bearings in order to keep them properly spaced and aligned. In either case, it is important that this critical adjustment be performed correctly in order to avoid costly repairs or replacements down the line. It also has an inner diameter of 1 . Inside the 8.2-inch 10-bolt, the ring-gear bolts have 9/16-inch socket heads with 3/8-24 left-hand threads. 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. The easiest way to identify the 8.2-inch rearend at a glance is by the shape of the housing and the spacing between the lower bolts on the cover. Bear Preload IN. If rotating torque is low, tighten pinion nut in 6.8 Nm (5 ft. Chrysler 300 and Dodge Charger 2006-2008 Torque Specifications Repair Guide. We'll send you the most interesting Chevy Hardcore articles, news, car features, and videos every week. Generally speaking, these torque specifications will fall between 20-30 ft/lbs; however, for most applications ARB recommends a torque specification of right around 25 ft/lbs. 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. 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. In this context, "hardest gear" refers to the ratio of front sprocket teeth to rear sprocket teeth - typically expressed as 4.55:1. CRAWLPEDIA Off-Road Encyclopedia. **Note the Pinion nut is in INCH pounds Ring Gear Bolts = 55 lb. OEM bolts have thread locker on the threads. 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. Once you give everything a thorough inspection you can begin the re-assembly process. Our LS swap adapter kits make it easy! Record pinion flange rotating torque, with a torque wrench. Step 1: To seat, torque nut to 50 (lb-ft) while . Too much won't hurt anything other than break the bolt. 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. The first is to use a crush collar; this involves applying pressure between the yoke and cup until it reaches the desired depth. Gear Ratio Finder - Find the ideal axle gear ratio for your new larger or smaller tires. Is that really all it takes? Tightening Torque Clamp Load The 12-bolt is generally considered to be the stronger of the two rear axles. Camshaft thrust Plate bolts 106 in-lbs. Find out how to access AutoZone's Torque Specifications Repair Guide for 300, 300C & Magnum 2006-2008, Charger 2006-2008. Next remove the nut and change the seal. It was in the 30-35 I "think" from GM. Follow along as Zach works over the old 10 bolt and brings it back to life. PINION NUT GM 7.5 8.5. 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. The date and location of manufacture coding changed in 1971. I need the torque on the pinion nut for the rear differential. The large flanges are easy to grip and make installation or removal easier than ever before, allowing you to easily tighten or loosen the nut without fear of it slipping away. One is the small, 7.5-inch, another is the 8.2-inch, and yettwo more are the 8.5 and 8.6-inch.
