1/2" x all lengths 100-110 ft lb. For that reason,many enthusiasts are considering the 10-bolt. 4.replace seal. 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. Save Share. 1. The PYN10 - 10-Bolt 8.5" Pinion Nut is perfect for 30 spline pinions, providing a dependable and secure connection between the driveshaft and differential ring gear. When the preload of the pinion bearings is incorrectly adjusted, it can have serious consequences. 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. Zone 1.5 BL, 22x12s, California delete, Detroit TrueTrac, etc. Edit: Next remove the nut and change the seal. Thick Gears and Carrier Breaks - Thick ring and pinion gears and differential carrier breaks explained. Not only was the 10-bolt assembly used in low performance applications, but it was also utilized in a variety of different vehicles ranging from Camaros, Chevelles and Impalas to even the earlier Chevy IIs. I used an 18" breaker bar with a 2 foot pipe on the end of it in order . It is important to have the right pinion nut for your 8.5-inch 10-bolt rearend. When compressing the crush sleeve, many guys use an impact wrench and end up crushing it too far, ruining the sleeve. Pin. It refers to how much tension is applied to the spring before it's installed in the vehicle and can be adjusted accordingly. lbs.) This tension is achieved through a collapsible spacer which is placed between the bearings and then compressed by turning the pinion gear nut. It's got a 350 with a 10-bolt rear end. Dana 60. 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. The pinion nut should also measure 1 1/8 inches, if the OEM pinion nut is still in use. The inch pound rating is the force required to turn the pinion after the crush sleeve has been crushed. How do you fix a loose pinion bearing preload? This is very important, because if you go too far the crush sleeve will be ruined. It also has an inner diameter of 1 . VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. When combined with a low curb weight, this combination creates acceleration so fast it feels almost supernatural. Therefore when dealing with these types of sleeves it's important to make sure they are installed correctly so as not to compromise its integrity or longevity. One is the small, 7.5-inch, another is the 8.2-inch, and yettwo more are the 8.5 and 8.6-inch. 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. 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. I have a 1993 Suburban K1500. 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. 2/3 drop, HP Tuned, Built 60e, 4.10s, Yukon Duragrip, etc. Torque Specs on Dana 60. ALL72156. Yukon Gear's Pinion Nut makes any job more efficient by ensuring your parts remain secure while providing superior protection from contaminants. 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! By Albert. Take Zach R. for instance. 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. See other Red Line Oil Products that we recommend. The number of teeth on each of these gears determines how much rotational force is converted into torque or speed. Talk to the experts. 440-500 lbs ft and I wouldn't tackle it bring it somewhere where they know what they are doing..I have a four foot torque wrench that goes to 500 but thats one hell of a grunt and you have to hold the flange while doing this. ALL72156. 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. It is internally different from the 8.2 Chevy, but has the same external bosses and brackets. Once properly secured in place, you should have no further issues with your pinion nut installation. GM 14 Bolt Specs (all data for SRW truck 14 Bolt axle - others may vary - see table on "different 14 bolts" below) . Data is accurate to the best of our knowledge and is offered as-is with no guarantee. You keep on tightening the pinion nut until you are within the in-lb. Search Car Torque Specifications by Engine or Model It is important to follow the instructions that came with your differential cover, as torque specifications can vary drastically depending on the material and grade of fastener used as well as the material of the diff cover itself. For reference use at own risk. Call 800.979.0122, 7am-10pm, everyday. 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. I thought the pinion nut would be more like 50-75 FOOT pounds? IMPORTANT: The pinion preload should be at or below 4 Nm (35 inch lbs.) GM 10 Bolt 8.2; GM 10 Bolt 8.5; GM 12 Bolt 8.875; GM 8.6 IRS; GM Install Kits; MOPAR. These are two pinion gears for the 8.5-inch 10-bolt. . 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. Or some do it by feel. The PYN10 - 10-Bolt 8.5" Pinion Nut is perfect for 30 spline pinions, providing a dependable and secure connection between the driveshaft and differential ring gear. CRAWLPEDIA Off-Road Encyclopedia. This website uses cookies or similar technologies to enhance your browsing experience. I am also replacing all the bearings on my son's 97 Chevy rear end. With careful consideration, selecting an appropriate option for your driving style can make a world of difference when it comes to performance and efficiency behind the wheel. Shop Differential Pinion Bearing Spacers and Sleeves at Summit Racing. Pinion bearing preload is measured in inch-pounds, and is a measure of the rolling resistance of the pinion bearings after proper torque has been applied to the pinion nut. You will also notice the large, flat, cast-in protrusions at thefive andseven oclock positions. As well as many other third member torque specs from Strange. Our Mopar flexplate buyers guide will help. This means that turning the pedals at the front will turn the back wheel 4.55 times over, which requires quite a bit of effort but allows for fast movement once achieved. 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. Skip to main content. It has a black oxide finish that ensures corrosion resistance while its construction of hardened steel ensures durability even under extreme conditions. We believe that our exceptional customer service and product knowledge is what sets us apart from the competition. Ring Gear Backlash Ring Gear Bolts to Cast FT. LBS. Once you give everything a thorough inspection you can begin the re-assembly process. This sleeve must be replaced every time the pinion nut is torqued. All rights reserved. Like most 10-bolts, the axles are held in place by C-clips on the inner end of the axles. 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. A forum community dedicated to GMC and Chevy full size owners and enthusiasts. 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 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. Our LS swap adapter kits make it easy! If too tight, the bearings become overstressed and will fail prematurely, causing a catastrophic failure of both the ring and pinion gears. On top of that, many pickup owners find that making such modifications also provides them with a greater sense of control over their vehicles capabilities, allowing them to feel more confident and secure on their journey no matter what lies ahead on Oct 5 2022. 3. remove yoke from splines. Currie 44 : Torque: Pinion Nut (Solid Spacer) 250 ft lbs. 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. DANA SPICER: .035. Use Loctite #271 on the bolt threads and torque in a crisscross fashion to 55 ft-lb. We promise not to use your email address for anything but exclusive updates from the Power Automedia Network. Pinion Bearing Preload (New) (inch/lbs) Pinion Bearing Preload (Used) (inch/lbs) Backlash (.001 in) Ring Gear Bolt Torque (Foot lbs.) Products include ring and pinion sets, installation kits and axle shafts for GM, Ford, Chrysler, Jeep, and Toyota vehicles. lbs. 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. 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. Back off left-side adjusting nut approximately 2 slots. 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.) We'll send you the most interesting Chevy Hardcore articles, news, car features, and videos every week. 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. grade 8. 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. If youre building a street car and want to improve performance, we all know the drill. We were lucky and had a desirable contact pattern on both the drive and coast sides of the gear teeth. On the other hand, if your backlash is too wide you will need to adjust by moving the carrier towards the pinion with a similar measurement technique. When a very slight increase in pinion turning effort is noted, check the pinion rotating torque using an inch-pound torque wrench. The pinion on the left is part of a 4.11:1 gear set; the one on the right is a 3.08:1 pinion. Received 16 Likes on 13 Posts. It also uses a 10 5/8-inch irregular-shaped cover. Choosing a higher ratio will provide more power and torque for pulling heavier loads or navigating steep grades with ease, while lower gears are better suited for those tackling long stretches of open highway or cruising around town at slower speeds.