pinion nut torque specs gm 10 bolt

Products include ring and pinion sets, installation kits and axle shafts for GM, Ford, Chrysler, Jeep, and Toyota vehicles. 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. FSM says 181-325 ft-lbs. This applies to all types of vehicles with any type of gearing system regardless of pitch or size it doesnt matter which one you change as long as you can adjust it accordingly. It was in the 30-35 I "think" from GM. Lifted78Chevy. 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! 8 to 11 in-lbs. Crankshaft Main Bearing Cap Bolts 70. Pin. 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. Ring gear bolt torque: 110 ft*lb. Pinion Nut FT. LBS. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. Good luck finding one of these, however, as they are very popular among performance enthusiasts. grade 8. Finding a 12-bolt that is affordable, is getting to be anearly impossible endeavor. 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. The amount you tighten the nut (with or without the crush sleeve) is based on the amount of force measured in inch pounds it takes to rotate the pinion. For reference use at own risk. 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. 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. Final torque on the pinion nut is necessary to compress the crush sleeve. Follow along as our employee Zach installs a GM 10 bolt rebuild kit from Motive Gear. First mark the position of the nut with a chisel or other method so you can tighten it back to exactly the same place. 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. Whats The Reason Enthusiasts Cant Get, Yes I Am A Dinosaur, And Why I Feel Electric Cars, Rare Rides: The 1969 Chevrolet Camaro COPO, SPEC Clutches: For That Next Engine Swap Or OEM Upgrade, Shop Tour: Brian Tooley Racing Expands To Be A One-Stop Shop, Moroso Anti-Roll Kit Is The Right Tool For The Dragstrip, Why You Need A Proper Fuel Tank Vent In Your Ride, Fenix Is A Next-Gen 69 Camaro With 1,180 Horsepower. 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. Rotate the pinion when tightening the nut to seat the bearings evenly. Sometimes, you need to push yourself. Step 3: Back off 3/8-turn for automatic hubs, and just enough to free the bearing for manual hubs. I like to slowly tighten the new pinion nut until I take up all of the front to back free play. Preload doesn't have any effect on spring stiffness; rather, its used as a way of compensating for springs that are too soft or too stiff. ISO torque spec for rear diff pinion shaft pin bolt - IH8MUD Forum Jul 2, 2020 / The side bearing preload is the difference of preloads (5) x the gear ratio (3.73) = 18.65. Not sure what to do here but I know I'm looking at a boat load of parts I do not have the money for right now so not sure what the hell I'm going to do. 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. When the preload of the pinion bearings is incorrectly adjusted, it can have serious consequences. The 8.5-inch 10-bolt rearend is hugely popular because aftermarket carriers and gears are easily interchangeable. 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. 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. Continue tightening the pinion nut to collapse the spacer and preload the bearings. 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. Inside the 8.2-inch 10-bolt, the ring-gear bolts have 9/16-inch socket heads with 3/8-24 left-hand threads. 2/3 drop, HP Tuned, Built 60e, 4.10s, Yukon Duragrip, etc. 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. Unfortunately, once this tension has been released the crush sleeve cannot hold it again. Is a GM 10 bolt rear end good? We promise not to use your email address for anything but exclusive updates from the Power Automedia Network. Thanks Mike, Id appreciate it. I have seen street 12 bolts that . Use Loctite #271 on the bolt threads and torque in a crisscross fashion to 55 ft-lb. 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. OEM bolts have thread locker on the threads. The 8.5 rearend will have a round cover, and part of the cover will extend rearward to make room for the ring gear. Technical Specifications - Down To Fab With the pinion bearing properly lubricated, increase or decrease . 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). 14 bolts and 10 bolts are different, not sure about changing seals though. Differential Torque Values | In4x4mation Center - Morris4x4Center The following are recommended Differential Set-Up Specifications for various differentials. The tension between the bearings of a crush sleeve is a very important factor in its performance, as it helps to ensure that the bearing stays correctly set and does not move or become misaligned. lbs.) This ring and pinion setup guide is Copyright Crawlpedia.com - Please provide a link back to this page when copying. 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. Carrier Cap Bolts. Axle Retainer Plate Nuts: 3/8" T-bolts - 30 ft lbs. This results in improved performance, longer life span and more efficient operation of the system. Learn more about GM steering column identification, GM steering column lengths, and GM steering column compatibility. Is a GM 10 Bolt rear end good? Chrysler 300 and Dodge Charger 2006-2008 Torque Specifications Repair Guide. when assembling the pinion into place, include the crush sleeve between the two pinion bearings. We are available to help Monday thru Friday from 8 AM to 5 PM Pacific Standard Time, and most orders placed by 4 PM ship out the SAME DAY! BOP stands for Buick/Oldsmobile/Pontiac. Differential Setup & Torque Specifications - Sierra Gear GM 8.875" 12 Bolt Differential Ring Gear and Pinion Set. Now that the hard part is done you can re install the carrier with the shims in place, torque the bearing caps and run one more contact pattern to make sure everything is good to go. Differential Set-Up Specifications | West Coast Differentials Like most 10-bolts, the axles are held in place by C-clips on the inner end of the axles. Allstar Pinion Nut GM 7.5 8.5 ALL72156. 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. 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 carrier bearing rides in the races and you will snap the bolt off before you warp or crack the races. This will help ensure that there isn't an excess of tension on these components, which can lead to premature wear or even failure. Once properly secured in place, you should have no further issues with your pinion nut installation. 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. How do you fix a loose pinion bearing preload? You can feel the power of all that torque in your bones as it propels the car forward even faster than before. 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. increments until rotating torque is achieved. When combined with a low curb weight, this combination creates acceleration so fast it feels almost supernatural. checking the pre load with the inch lb torque . Pinion nut torque, what's the definitive answer? - Chevy Nova Forum As the speedometer rises, each gear shift is accompanied by an even more intense sensation of power, making every drive exhilarating and unforgettable. It saved me time and effort trying to crush a brand new crush sleeve. That being said, it isnot recommended for use behind engines that make a serious amount ofhorsepower. The unique design and shape make installation easier while providing ample strength for off-road applications. lbs. Sometimes, pinion bearing preload can be a tricky procedure. On the other hand, reducing the size of the pinion or increasing the size of spur gear will result in decreased top speed but with an increase in acceleration. 6 TO 10. you have it pretty much. 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. ALL72156. 7/16" x all lengths 60-65 ft lb. 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 this pinion nut, you can rest assured that your vehicle will be ready for whatever terrain comes its way! What is the gear ratio on a 10 bolt rear end? Skip to main content. CHECK FREQUENTLY as you progressivley tighten the pinion nut. torque specs 8.5 rear | NastyZ28.com Most 8.5-inch 10-bolt rearends have two extruded, cast-in lugs on the bottom of the differential housing at the 5:00 and 7:00 positions. Unfortunately, unless you have the two units side by side, it is nearly impossible to tell them apart. What is the torque on the pinion yoke nut - JustAnswer When changing a ring & pinion and doing final install of pinion there is no torque spec on the pinion nut itself. for a ten bolt rear it should be about 20 inch pounds while you are turning the torque wrench. GM 8.5" 10 Bolt / Ring & Pinion Gear Set w/ Master Bearing . This procedure is necessary in order to ensure that everything within the drivetrain is working correctly and efficiently. Rear end pre load torque | Chevy and GMC Duramax Diesel Forum A 2.6-3.0 gear ratio range is perfect for flat places and most people find this ratio suitable for their needs. Too much won't hurt anything other than break the bolt. Gear Ratio Finder - Find the ideal axle gear ratio for your new larger or smaller tires. The rotating torque must be 2 to 3 N-m (15 - 25 inch pounds). Yukon Gear & Axle SK CSGM8.5 Yukon Gear & Axle Crush Sleeve Eliminator Kits | Summit Racing. Ring Gear Backlash Ring Gear Bolts to Cast FT. 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. The distance between thebottom center bolt in the cover and its adjacent bolts is 3 1/4 inches. 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.