in order to compensate for the drag of the new seal, the nut should be tightened more until the rotational torque of the pinion slightly exceeds what was recorded earlier, but not by more that 5 in/lbs. The control arm-mounting ears on top of this 7.5 rearend denotes it is usable for any 1978-88 GM A or G-body intermediate like a Cutlass, Monte Carlo, El Camino, Malibu, Regal, or Grand Prix. While this article focuses specifically on the GM 8.5 10-bolt rear differential, the parts and processes described herein cover most differential housings.Built from the 1970s through today (the 8.6" 10-bolt is still used in most GM . That way, you dont unknowingly spend money on something you really do not want. 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. MOPAR: 8.75" x 1.75" pinion: .090. . 2023 Power Automedia. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. Some builders . 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! 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. Not only is it important to keep the backlash variation under 0.005?, but in an ideal world, no variation should be present at all. Vendor Part Number. 12 Bolt Rear Axle Torque Specs. The rear end is full of it. Yukon Gear's Pinion Nut makes any job more efficient by ensuring your parts remain secure while providing superior protection from contaminants. 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. You will need a torque meter in inch-lb. The pinion nut should then be secured and tightened until there is no bearing play at all. So, in order to adjust the pinion bearing pre-load, shims of varying thicknesses are inserted into pre-load retainers. 5 - 8 : Ring Gear Bolt Torque (Foot lbs) 120 : Bearing Cap Torque (Foot lbs) 135 : Pinion Nut Torque: Tighten as necessary to obtain correct preload: Pinion Bearing Retainer Torque (Foot lbs) :65 : . Ring and Pinion Ratio Variations - An explanation of why some ring and pinion gear ratios vary. 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. I have a 2001 2500 HD. Max Ellery's Land Cruiser Repair Manual 1969-1990 (FJ & RJ) on new bearings, or 1.2 Nm (10 inch lbs.) EDLANTA there is a "crush" spacer between the two pinion bearings that when tightened properly gives you the proper bearing preload. First mark the position of the nut with a chisel or other method so you can tighten it back to exactly the same place. 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. The distance between thebottom center bolt in the cover and its adjacent bolts is 3 1/4 inches. Order before 4PM and most parts ship out the SAME DAY.
Pinion Nut Torque Spec. | Team Chevelle Mine was a pita. 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. It first appeared in 1970 production cars as a corporate replacement for the 8.2-inch 10-bolt rearend. 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. Upon initial . Inch pound torque wrench that will read that low of a number which will be "VERY" costly. Cover Bolts: 25 ft lbs. 9 Minutes Read /
Is a GM 10 Bolt rear end good? We were lucky and had a desirable contact pattern on both the drive and coast sides of the gear teeth. If you installed a new seal, add 1 or 2 in-oz. 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.
GM 8.5" and 8.6" Axle Parts, Gears, and Upgrades - Drivetrain Shop 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. A Series 2 carrierwill work with 2.56 and higher gears (numerically lower) such as 2.41. for a ten bolt rear it should be about 20 inch pounds while you are turning the torque wrench. Bearing Cap Torque (Foot Lbs.) Skip to main content. havent done it, but i have the haynes repair manual and ill type out the steps for you, may take me a second though. 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. 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). 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 . Learn more about GM steering column identification, GM steering column lengths, and GM steering column compatibility. That being said, limited gear sets are offered for the carriers, especially if you plan to change gear ratios.
What do I torque pinion nut to ( 14 bolt FF ) | CK5 Network LBS. 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. Sometimes it feels like youre in a race car when you accelerate hard with a high-torque vehicle. 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.
Drive Train Specialists Setup Specifications | DriveTrainSpecialists.com Rotate the pinion when tightening the nut to seat the bearings evenly. Yukon Gear & Axle SK CSGM8.5 Yukon Gear & Axle Crush Sleeve Eliminator Kits | Summit Racing. We started by getting a rebuilt kit from Motive Gear . We promise not to use your email address for anything but exclusive updates from the Power Automedia Network. . You will need to know that there are different series of differentials (seriestwo and three). If youre building a street car and want to improve performance, we all know the drill. Is a GM 10 bolt rear end good? I will attempt to cover the necessary steps in building a differential for a GM 10 bolt rear end with an 8.5/8.6 ring gear. 2429 Mercantile Drive Suite A Mikz86TA. To reach an accurate level of tension or preload, experience and expertise are usually required when dealing with this type of repair work. These are two pinion gears for the 8.5-inch 10-bolt. Gear oil is nasty stuff, mostly in smell. I have seen the ring gear bolts, pinion nut and retaining bolt come loose, but never a bearing cap bolt. 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. While the 8.5-inch rearend was used on vehicles up to 1999, The 8.6-inch (8.625) was used on 2000 and later-year trucks. It was in the 30-35 I "think" from GM.
Technical Specifications - Down To Fab How tight should a pinion nut be? It involves placing a collapsible spacer between the bearings of the pinion gear, then using a torque wrench to tighten the pinion nut until it reaches the correct amount of pressure or preload on the bearings. 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. When additional shims are added, this increases the total width of the retainer assembly, pushing the bearing cones further away from their respective cups and as a result reducing drag on them. On the other hand, if the preload is set too loose it can cause a whining noise to originate from within the rear end as well as abnormal gear wear due to excessive movement between the two components - eventually leading to failure. Automotive Chassis Torque Specs. It has to be drained to get a peak inside. 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. 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 then assembled the pinion, inner bearing, shim pack in the carrier then pressed on the outer bearing using a 20 t press then installed the yoke washer and nut. That does not describe how tight the pinion nut needs to be however. Finding a 12-bolt that is affordable, is getting to be anearly impossible endeavor. 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. ft. . When compressing the crush sleeve, many guys use an impact wrench and end up crushing it too far, ruining the sleeve.
Save Share. This heavy duty nut has been designed using high grade steel and features a zinc plated finish for maximum protection against rust and corrosion. These protrusions are larger than those on the 7.5 rearend. 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 . With the pinion bearing properly lubricated, increase or decrease . You keep on tightening the pinion nut until you are within the in-lb. This will ensure that your backlash is correct without having to swap the shims. For that reason,many enthusiasts are considering the 10-bolt. This ring and pinion install kit comes with new pinion bearings, carrier bearings, races, crush sleeve, pinion nut, pinion seal, a gasket and even has the gear marking grease included. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. 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. If sticky tires are used, youll quickly turn the 7.5-inch rear into a pile of unusable parts. 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 .
Chevrolet C/K 1500 Questions - Pinion Seal - CarGurus Come join the discussion about performance, lift kits, wheels, tires, modifications, troubleshooting, maintenance, and more! Like the 8.2-inch 10-bolt, the 8.5 10-bolts use C-clips to retain the axles. Our custom-length driveshaft kits make it a breeze to get the perfect 67-72 C10 driveshaft length.
Chevrolet GM 8.875 Inch 12 Bolt Truck Ring and Pinion Sets I got the price for the seal, and it is near $9. Some pinion nuts require a special procedure to be properly installed. 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. The easiest way to tell the difference is by looking at the brakes.
PDF Rear Axle Torque Specs Chevy Silverado - annualreport.psg.fr Ring Gear Bolt Torque (Foot lbs) (N.m.) Bearing Cap Torque (Foot lbs) (N.m.) AMC; Model 15 : 20 - 40 (2.3 - 4.5 ) . What is the gear ratio on a 10 bolt rear end? Oct 29, 2001. Since it was so widely used, there is a better possibility of finding one of them at a salvage yard thanlocating a 12-bolt. It is essential to ensure that the pinion flange is firmly held in place with a fixture or tool. 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. 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. 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. Inside the 8.2-inch 10-bolt, the ring-gear bolts have 9/16-inch socket heads with 3/8-24 left-hand threads. The more torque produced, the less energy needed to move the car forward. The side bearing preload is the difference of preloads (5) x the gear ratio (3.73) = 18.65. 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. Ring Gear Diameter: 8.500Cover Bolts: 10Ring Gear Bolts: 10Ax . Pinion Nut FT. LBS. Unfortunately, unless you have the two units side by side, it is nearly impossible to tell them apart. Speedway Motors employees enjoy not only helping our customers, but also turning some wrenches in their downtime as well. 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. Ford 9 inch torque specs; Gear Ratio Calculator; Order Forms. with an impact. Sure, you know whats in there and what it does but are you willing to tear into it and rebuild the differential? . Backlash refers to the distance between two mating gear teeth when they are not engaged. Give us a try, we think you'll be glad you did! Edit: 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. You have to do it a little differently though. You can replace the pinion seal without changing the crush sleeve. Nut secures driveshaft yoke to pinion gear. The pinion bearing preload is an important component of the drivetrain system, as it works to ensure that the pinion gear's tapered bearings are running smoothly and efficiently. There is no way to happiness.happiness is the way. We show you how to keep that old GM transmission when swapping in an LS engine. It is important to have the right pinion nut for your 8.5-inch 10-bolt rearend. 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 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. Thats usually proven when used in high-performance, high-horsepower applications. 9 Minutes Read /
Most 8.2 factory covers also have the strangeprotrusionat the top. At West Coast Differentials we are committed to making your experience with us totally enjoyable. Part Number. These have been around since 1975, and were installedunder cars, small trucks, and vans up to the 2005 model year.
GM 10 Bolt Rebuild Instructions - Speedway Motors stock 4L60E on 5th filter/fluid change; 2nd set of drive shaft u .
Differential Assembly Specifications - gounitrax.com 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. As the speedometer rises, each gear shift is accompanied by an even more intense sensation of power, making every drive exhilarating and unforgettable. The OEM pinion nut is 1 1/4 inches.
What are the torque spec on pinion for a 1996 chevy k1500? - JustAnswer That is theimpetus for why we decided to put this swap meet/junkyard identification guide together. See other Red Line Oil Products that we recommend. 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. 8 to 11 in-lbs. 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.
Differential Torque Values | In4x4mation Center - Morris4x4Center There are several differentials for the 10-bolt rearend. Pinion Nut Torque Spec. Many mechanics use an impact gun while others insist the nut should be torqued by hand. This is very important, because if you go too far the crush sleeve will be ruined. Sierra Gear & Axle is a premium line of light-duty differential parts. Locate a Sierra Gear & Axle Distributor near you. 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. The GM 8.5" 10 Bolt axle, also known as the GM 8.6" axle or GM 10-Bolt, is available in many front and rear axle . Unfortunately, once this tension has been released the crush sleeve cannot hold it again.
Pinion nut torque spec. | S-10 Forum Since listing them all within this article is impossible, well be focusing only on visual identification. This website uses cookies or similar technologies to enhance your browsing experience. So, when adjusting preload, if it is too loose then the shims should be removed. Sierra Gear & Axle parts are designed and engineered to the highest quality specifications for use in street, off-road and performance environments. Alternate Description. does anyone know the torque specs for a 10 bolt 7.5 for the pinion and carrier caps .
Rear end pre load torque | Chevy and GMC Duramax Diesel Forum The pinion nut is a 32mm or 1 1/4" so you need a socket and adapters for that.
Rebuilding the GM 10-Bolt Rear Axle - MotorTrend In most cases, however, even with a straight case, a certain degree of backlash can be tolerated up to 0.005? Just out of curiosity,what are the 8.5 (r 65lbft & c 60lbft ?) Well show you what to look for in this buyers guide. If rotating torque is low, tighten pinion nut in 6.8 Nm (5 ft. JavaScript is disabled. This should result in approximately 7 thousandths of an inch adjustment in terms of backlash.
Ford 9 inch Torque Specs - Strange Engineering Once the specified preload has been obtained, make sure the bearings are seated by rotating the pinion several times.
CAP TORQUE. 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.) 2.2L FOUR CYLINDER ENGINE: Camshaft sprocket bolt 96. Talk to the experts. Bear Preload IN. The Hex is 5/16 the threaded part is SAE 5/16 inch 18 threads per inch. Mgrotel, nice cliff notes. For reference use at own risk. CHECK FREQUENTLY as you progressivley tighten the pinion nut. 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. GM 10 Bolt 8.2; GM 10 Bolt 8.5; GM 12 Bolt 8.875; GM 8.6 IRS; GM Install Kits; MOPAR. FORD: .020. Torque Specs on Dana 60. You can feel the power of all that torque in your bones as it propels the car forward even faster than before.
Repairing your C2 and C3 Corvette Rearend - MotorTrend sny 00235 converted This is an 8.2 BOP axle.
torque specs 8.5 rear | NastyZ28.com Try our Differential Gear Calculator. For inquiries about our products and services, please fill out the form below. The Fora platform includes forum software by XenForo. Torque is a measure of rotational force that must be applied in order to secure components such as axles and other parts together. OEM bolts have thread locker on the threads.
Pinion Lock Bolt Torque Specs - YouTube All of the parts we sell are also used every day in our busy service shop. .
8-Inch Ford Rear End Torque Specifications | It Still Runs 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. 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. Set the preload carefully (see "Set Up Specifications") so that the bearings will have a long life. 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. Rightfully so, because when comparing the 10 and 12-bolt units, its definitely the more durable of the two. Tightening Torque Clamp Load (lbs.)
This allows you to put the pinion gear in, set the pinion bearing pre-load, set the backlash and then run a contact pattern without the chance of compressing the crush sleeve too much. 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. It has a black oxide finish that ensures corrosion resistance while its construction of hardened steel ensures durability even under extreme conditions. Here is my related question at almost 1 a.m. and torn down in driveway need to get to work: There was quite a chance that you have crushed the sleeve beyond the preload spec to make it hard to turn. Check the pinion preload by rotating the pinion with a torque wrench. An 8.2 (shown) will have the same contour as the cover. Crankshaft Pulley to Crankshaft bolt 77. Reply Quote. The pinion nut should also measure 1 1/8 inches, if the OEM pinion nut is still in use. For a better experience, please enable JavaScript in your browser before proceeding. There are other 14b axles out there - a 9.5" ring gear semi-float for one, and even a 11.5 . 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. Determining the correct flexplate for your V8 Mopar-powered project takes a little understanding of how these engines were balanced.
History and Identification of Chevy 10 and 12 Bolt Chevy Differentials IMPORTANT: The pinion preload should be at or below 4 Nm (35 inch lbs.) Would this be the same How to write up for my truck?
Torque / Capacities - Currie Enterprises The 8.5 rearend will have a round cover, and part of the cover will extend rearward to make room for the ring gear. Unfortunately, you cannot rely on this torque because the crush sleeve provides unpredictable and non-linear resistance as it buckles and crushes. Backlash = 6-10 (.001 inch) 2003 S-10 ZQ8 - 262/M5:bowtie: 1986 Pontiac Trans Am - 355/A4 The 8.5-inch 10-bolt rearends have ten 3/4-inch hex head bolts with 7/16-20-inch left-hand thread bolts that hold the ring gear to the carrier. Depending on what you're using it for, there is an axle size to suit; 7.5/7.625-, 8.2-, 8.5- or 8.6-inches from smallest to largest respectively, so no matter how much horsepower you need to support, there is an option available to fit your needs perfectly and provide excellent strength and reliability even under heavy loads and high speeds. Our LS swap adapter kits make it easy! It is important to note that if possible, it is best practice to use an old or used pinion nut for this operation, as new ones can often bind when tightened too much. This ring and pinion setup guide is Copyright Crawlpedia.com - Please provide a link back to this page when copying. I agree that the preload needs to be about 30 inch pounds. Pinion Bearing Preload (New) (inch/lbs) Pinion Bearing Preload (Used) (inch/lbs) Backlash (.001 in) Ring Gear Bolt Torque (Foot lbs.) 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 8.5-inch 10-bolt rearend was used in cars and trucks over a wide range of years. Install left-side adjusting nut lock, washer, and bolt. The first is to use a crush collar; this involves applying pressure between the yoke and cup until it reaches the desired depth. Next we disassembled everything, starting with the cross pin bolt, cross pin and C clips. It doesn't have to be hard, and we offer some tips to keep your car's finish in top shape. You can rest assured knowing that your axle is secured with this high quality product. carrier bearings, races, crush sleeve, pinion nut, pinion seal, a gasket and even has the gear marking grease included. 1. remove d shaft straps push shaft aside. This is especially true when it comes to cycling.
PDF TORQUE-TENSION REFERENCE GUIDE - Fastenal Currie 44 : Torque: Pinion Nut (Solid Spacer) 250 ft lbs. Just get a couple sacrificial pinion bearings and open them up a little so you don't have to press them on and off the pinion and add/remove shims until you get the correct preload shown on page 2 of the set up manual. Part Number. 10.50 PINION NUT: GM . The 8.2-inch 10-bolt has a smooth, round, lower-case area (no cast-in protrusions), with an 11-inch cover that has a diagonalprotrusion at the top. I have a leaky pinion seal and housing seal so I am planning on replacing the seals in the very near future. Shop Differential Pinion Bearing Spacers and Sleeves at Summit Racing. 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. For bearings that are already in use, set preload at 15 inch-pounds; if they are new bearings then you should aim for 25 inch-pounds when setting preload. The oval-shaped cover measures 8 5/16 inches by 10 9/16 inches. 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. The following are recommended Differential Set-Up Specifications for various differentials.
Pinion torque specs?? Plz help | GM Truck Club Forum when assembling the pinion into place, include the crush sleeve between the two pinion bearings.
GM 10-bolt 8.5-inch Differentials | Hemmings This assembly featured an 8.2-inch ring gear diameter as well as 28-spline axles which provided adequate strength for these vehicles. Pinion nut torque (shimmed preload style): 250 ft*lb.
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