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. Bearing Cap Torque (Foot Lbs.) JavaScript is disabled. 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. What size is pinion nut Silverado? The 8-inch rear axle looks very much like the popular Ford 9-inch rear axle. 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. You will need to know that there are different series of differentials (seriestwo and three). Over several generations of small block Chevy (and big block Chevy) engines there have been several changes that dictate what flexplate works with them. . The 8.5-inch pinion diameter is 1.625 inches, whereas the 8.2-inch is smaller at 1.435 inches. Crankshaft Pulley to Hub Bolts 37. For the street/strip car, the 10-bolt rearend is a great choice. Sometimes strength is an important factor when choosing between components, and this is true with the 10-bolt and 12-bolt rearends. Sie Bear Caps FT. LBS; AMC 20 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. 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. FORD: .020. If youre building a street car and want to improve performance, we all know the drill. 2/3 drop, HP Tuned, Built 60e, 4.10s, Yukon Duragrip, etc. For a better experience, please enable JavaScript in your browser before proceeding. Pinion nut has no torque spec. 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. 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. Its strength and reliability have been proven time again, making it an excellent option for drivers looking for reliable performance from their vehicle. The number of teeth on each of these gears determines how much rotational force is converted into torque or speed. Sierra Gear & Axle is a premium line of light-duty differential parts. Well show you what to look for in this buyers guide. When combined with a low curb weight, this combination creates acceleration so fast it feels almost supernatural. 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. It is internally different from the 8.2 Chevy, but has the same external bosses and brackets. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. Yukon Gear & Axle SK CSGM8.5 Yukon Gear & Axle Crush Sleeve Eliminator Kits | Summit Racing. 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. Check the pinion preload by rotating the pinion with a torque wrench. 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. On the other hand, if there is too much backlash then this will also lead to excessive mechanical wear due to increased friction and noise as the teeth continually rub against each other. 2. unbolt pinion nut. The torque required to seat the nut is very large, possible 200 ft-lbs or more. 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. 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.) 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. You have to do it a little differently though. 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. 2 ways. Since listing them all within this article is impossible, well be focusing only on visual identification. I have seen street 12 bolts that . JavaScript is disabled. stock 4L60E on 5th filter/fluid change; 2nd set of drive shaft u . 8-Inch Ford Rear End Torque Specifications. Follow along as we show how to measure and install a C10 one piece driveshaft. 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. 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. 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. Pinion Nut Torque Spec. 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. Good info on this site from what I've seen so far, kudos. Good luck finding one of these, however, as they are very popular among performance enthusiasts. 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. We were lucky and had a desirable contact pattern on both the drive and coast sides of the gear teeth. 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. Tighten bolt to 20 ft/lbs. Shop Differential Pinion Bearing Spacers and Sleeves at Summit Racing. This tension is achieved through a collapsible spacer which is placed between the bearings and then compressed by turning the pinion gear nut. TORQUE SPECIFICATIONS. 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. Usually, when people are discussing gear ratios, theyre referring to the relationship between a pinion gear and a spur gear. This is very important, because if you go too far the crush sleeve will be ruined. 2.2L FOUR CYLINDER ENGINE: Camshaft sprocket bolt 96. Cover Bolts: 25 ft lbs. Sure, you know whats in there and what it does but are you willing to tear into it and rebuild the differential? There are other 14b axles out there - a 9.5" ring gear semi-float for one, and even a 11.5 . The trick is to get it tight as possible without crushing the sleeve any more then it already is crushed. Too much won't hurt anything other than break the bolt. 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. 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. ALL72156. Chrysler 300 and Dodge Charger 2006-2008 Torque Specifications Repair Guide. The unique design and shape make installation easier while providing ample strength for off-road applications. Is a GM 10 Bolt rear end good? Dana 60. Data is accurate to the best of our knowledge and is offered as-is with no guarantee. 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 . A forum community dedicated to GMC and Chevy full size owners and enthusiasts. 14 bolts and 10 bolts are different, not sure about changing seals though. 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. By following these steps carefully and precisely, you can ensure that your gear and carrier are set up correctly for optimal performance. When compressing the crush sleeve, many guys use an impact wrench and end up crushing it too far, ruining the sleeve. 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. For over a decade, the 8.5-inch 10-bolt was widely used as an axle in many cars and trucks produced by General Motors. This procedure is necessary in order to ensure that everything within the drivetrain is working correctly and efficiently. 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. We will safeguard your e-mail and only send content you request. 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. CRAWLPEDIA Off-Road Encyclopedia. Connecting Rod Cap Nuts 38. First I measured the old crush sleeve as a starting point. In most cases, however, even with a straight case, a certain degree of backlash can be tolerated up to 0.005? grade 8. 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. 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. 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. If it takes a 1/2-inch wrench to remove it, its an 8.2. Dana Technical Service Specs. Like all Chevy 10-bolts, the axles are retained by C-clips on the inner end of the axle shaft inside the carrier. FOR 1994-2001 CHEVY S10's & GMC SONOMA's. **ALL TORQUE SPECS ARE PER GM FACTORY & HAYNES MANUAL**. Thick Gears and Carrier Breaks - Thick ring and pinion gears and differential carrier breaks explained. 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 . 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.
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