grade 8. Well show you what to look for in this buyers guide. Furthermore, this action reflects positively on the company's overall commitment to providing reliable transportation services while ensuring its customers' safety remains paramount at all times. 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. I don't use it on the bearing cap bolts. Follow along as our employee Zach installs a GM 10 bolt rebuild kit from Motive Gear. The rotating torque must be 2 to 3 N-m (15 - 25 inch pounds). 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. The trick is to get it tight as possible without crushing the sleeve any more then it already is crushed. I need the torque on the pinion nut for the rear differential. The rear end is full of it. Ring and Pinion Gear Tooth Patterns - Gear tooth pattern setup and adjustement instructions. Part Number. Race-spec ring and pinion gears for desert racing, rock bouncing, and rock . 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. Pinion preload (used bearings): 8 - 10 in*lb. The side bearing preload is the difference of preloads (5) x the gear ratio (3.73) = 18.65. The pinion shaft diameter is 1.625 inches and will have either 28 or 30 splines. 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 . This one is not as easy as it sounds. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. 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. You can rest assured knowing that your axle is secured with this high quality product. Like all Chevy 10-bolts, the axles are retained by C-clips on the inner end of the axle shaft inside the carrier. Pinion Nut FT. LBS. Search Car Torque Specifications by Engine or Model Crankshaft Pulley to Hub Bolts 37. Step 2: Back off, then torque to 35 (lb-ft) for automatic hubs,or 50 (lb-ft) for manual hubs. 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. This will cause the bearings to press more firmly against the races, thereby increasing preload tension. A forum community dedicated to GMC and Chevy full size owners and enthusiasts. 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. Ring gear bolts. 3/8" T-bolt - 30 ft lbs. This is also likely to reduce run times due to lower temperatures as theres less load being put on your vehicles engine when compared to running with a bigger pinion and smaller spur gear combination. You can use this instead of the crush sleeve. This website uses cookies or similar technologies to enhance your browsing experience. Inside the 8.2-inch 10-bolt, the ring-gear bolts have 9/16-inch socket heads with 3/8-24 left-hand threads. When a very slight increase in pinion turning effort is noted, check the pinion rotating torque using an inch-pound torque wrench. CRAWLPEDIA Off-Road Encyclopedia. Mgrotel, nice cliff notes. This method works every time is done precisely as described. First I measured the old crush sleeve as a starting point. 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. If sticky tires are used, youll quickly turn the 7.5-inch rear into a pile of unusable parts. When compressing the crush sleeve, many guys use an impact wrench and end up crushing it too far, ruining the sleeve. May 22, 2021 /
Doing a gear ratio change but not sure what you want? 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. Determining the correct flexplate for your V8 Mopar-powered project takes a little understanding of how these engines were balanced. 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. 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. The 12-bolt is generally considered to be the stronger of the two rear axles. MODEL 20. 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. The 8.5-inch 10-bolt rearend was used in cars and trucks over a wide range of years. It has been proven to be reliable in high-performance and high-horsepower applications, but it can also handle occasional abuse from use on the racetrack. 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. Come join the discussion about Silverados, Sierras, and other full size trucks performance, modifications, suspension, lift kits, tires, maintenance, and more! When changing a ring & pinion and doing final install of pinion there is no torque spec on the pinion nut itself. 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. Its strength and reliability have been proven time again, making it an excellent option for drivers looking for reliable performance from their vehicle. That way, you dont unknowingly spend money on something you really do not want. The number of teeth on each of these gears determines how much rotational force is converted into torque or speed. Sierra Gear & Axle parts are designed and engineered to the highest quality specifications for use in street, off-road and performance environments. 2429 Mercantile Drive Suite A It also has an inner diameter of 1 . 1/2" x all lengths 100-110 ft lb. What size is pinion nut Silverado? Our Mopar flexplate buyers guide will help. GM 8.5" 10 Bolt / Ring & Pinion Gear Set w/ Master Bearing . Torque is a measure of rotational force that must be applied in order to secure components such as axles and other parts together. 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. BACK LASH 0.000". Would this be the same How to write up for my truck? Is a GM 10 Bolt rear end good? 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. All rights reserved. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. When I changed all the bearings in my suburban rear end, I bought the crush sleeve eliminator shims from Summit. 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. Connecting Rod Cap Nuts 38. With this pinion nut, you can rest assured that your vehicle will be ready for whatever terrain comes its way! Axle Images: Axle Details. 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. Speedway also offers the Economy Ring & Pinion Setup Tool we needed. Unfortunately, once this tension has been released the crush sleeve cannot hold it again. 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. Call 800.979.0122, 7am-10pm, everyday. Sometimes strength is an important factor when choosing between components, and this is true with the 10-bolt and 12-bolt rearends. 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. Talk to the experts. Oct 29, 2001. Differential cap bolt torque: 90 ft*lb. Not only is this a wise financial decision for both parties involved, but it also shows how much Chevrolet values customer satisfaction and safety. Failure to apply enough preload on the bearings can have an adverse affect on gear contact patterns. The pinion nut needs to be torqued to 250 ft/lbs. It's got a 350 with a 10-bolt rear end. You have to do it a little differently though. 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. Are all GM 10 bolts the same? If too tight, the bearings become overstressed and will fail prematurely, causing a catastrophic failure of both the ring and pinion gears. 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. It was first developed for racing cars where superior control on fast corners is essential for success; however, today torque vectoring differentials can be found in many production vehicles as well due to their exceptional performance benefits. Find out how to access AutoZone's Torque Specifications Repair Guide for 300, 300C & Magnum 2006-2008, Charger 2006-2008. Ford 9 inch Torque Specs for Ford 9 inch center Section torque specs. But, did you know there is more than one style of 10-bolt rearend? Received 16 Likes on 13 Posts. I have seen street 12 bolts that . 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. Sometimes when repairing or replacing components within a transmission, you may encounter a crush sleeve. havent done it, but i have the haynes repair manual and ill type out the steps for you, may take me a second though. 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. 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. Axle Type Cover Bolts FT. LBS. There are a few that have geared axles on here so they should chime in and help out with Real TECH :rocking: 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. Well help you determine the correct flexplate for your Chevy engine in this buyers guide. Ring Gear Backlash Ring Gear Bolts to Cast FT. LBS. Additionally, it increases load capacity because it prevents misalignment due to vibration or thermal expansion of components. Set the preload carefully (see "Set Up Specifications") so that the bearings will have a long life. The distance between thebottom center bolt in the cover and its adjacent bolts is 3 1/4 inches. . tighten the nut down till its snug and put on your torque wrench and turn it about 3 revolutions. 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. 3/8" x all lengths 45-50 ft lb. 8-10 ft lbs: None: None: GM 12 Bolt Car: Torque: Lubricant: Thread Locker: Main Caps: OEM Housing: . 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. Data is accurate to the best of our knowledge and is offered as-is with no guarantee. The 8.5 rearend will have a round cover, and part of the cover will extend rearward to make room for the ring gear. 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. I have a leaky pinion seal and housing seal so I am planning on replacing the seals in the very near future. Record pinion flange rotating torque, with a torque wrench. with an impact. 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. 9 Minutes Read /
I agree that the preload needs to be about 30 inch pounds. 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 axle was found in various vehicles from Chevrolets and Pontiacs to Oldsmobiles and Buicks with some of these models continuing production well into the early 80's. The PYN10 pinion nut has been specifically designed to fit 30 spline pinions and provide a secure fit and lasting performance. Like most 10-bolts, the axles are held in place by C-clips on the inner end of the axles. It also has an inner diameter of 1 3/16", allowing it to accommodate most 30 spline yokes without any extra modifications or components needed. By Albert. 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. Thanks Mike, Id appreciate it. Introduction. 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. By manipulating these two components and their ratio to each other, you can achieve different levels of performance from your vehicle that may suit your individual needs better than stock settings would. 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. Learn more about GM steering column identification, GM steering column lengths, and GM steering column compatibility. I have seen the ring gear bolts, pinion nut and retaining bolt come loose, but never a bearing cap bolt. Tighten nut until it takes 15-20 inch lbs of torque to rotate the pinion bearings: None: Self Locking Nut . It is not an uncommon sight to see a Yukon Gear Pinion Nut when it comes to automotive repairs. 1988 C1500 Silverado, 5.7L with some go fast parts. We think top-notch customer service is the most important thing we do. Some builders . Mine was a pita. 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. This gives us confidence in the quality of the parts we sell. Is a GM 10 bolt rear end good? Gear Ratio Calculator - Calculate the gear ratio of gears based on their tooth count. Ring and Pinion Ratio Variations - An explanation of why some ring and pinion gear ratios vary. In either case, it is important that this critical adjustment be performed correctly in order to avoid costly repairs or replacements down the line. For a better experience, please enable JavaScript in your browser before proceeding. MOPAR: 8.75" x 1.75" pinion: .090. . 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 was in the 30-35 I "think" from GM. That does not describe how tight the pinion nut needs to be however. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. 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 . It is essential to ensure that the pinion flange is firmly held in place with a fixture or tool. Currie 44 : Torque: Pinion Nut (Solid Spacer) 250 ft lbs. Originally, gear ratios ranged from 2.41 through 4.10. Once properly secured in place, you should have no further issues with your pinion nut installation. Mikz86TA. I also like to put some oil on the seal surface of the yoke to avoid tearing the new pinion seal. 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. Skip to main content. 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. 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. That being said, limited gear sets are offered for the carriers, especially if you plan to change gear ratios. Mine is leaking. This sleeve must be replaced every time the pinion nut is torqued. carrier bearings, races, crush sleeve, pinion nut, pinion seal, a gasket and even has the gear marking grease included. You can feel the power of all that torque in your bones as it propels the car forward even faster than before. This is very important, because if you go too far the crush sleeve will be ruined. Lifted78Chevy. As an added reference, Speedway Motors also offers a great book from CarTech, titled "High-Performance Differentials, Axles & Drivelines" that helps with step by step breakdowns of the process. It should be noted that while this axle is suitable for everyday driving and light duty applications, it must be upgraded if you plan on doing any serious racing or off-road activities with your vehicle. 8 to 11 in-lbs. Is a GM 10 bolt rear end good?