When the preload of the pinion bearings is incorrectly adjusted, it can have serious consequences. tighten the nut down till its snug and put on your torque wrench and turn it about 3 revolutions. 1/2" T-bolts - 50 ft lbs. 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. To ensure optimal performance in any application, it is essential to pay close attention to the amount of backlash between gears on all differentials. stock 4L60E on 5th filter/fluid change; 2nd set of drive shaft u . Additionally, it increases load capacity because it prevents misalignment due to vibration or thermal expansion of components. This article is a compilation of information and and specs relating to the venerable GM Corporate 14 Bolt full-floating rear axle - also referred to as the 10.5" (after the size of the ring gear in inches) or just simply the "14b" for short. big gear head. 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. Typically, 10-bolt differentials are specific to a series of gears. Follow along as Zach works over the old 10 bolt and brings it back to life. CAP TORQUE. That being said, limited gear sets are offered for the carriers, especially if you plan to change gear ratios. With this pinion nut, you can rest assured that your vehicle will be ready for whatever terrain comes its way! Torque is a measure of rotational force that must be applied in order to secure components such as axles and other parts together. You will need a torque meter in inch-lb. Both axles use a third member that contains the differential, which is made up of the . Just think, now when you and Drew drive out to Moab, you can sit and take a nap every other time Drew has to fuel. Thats usually proven when used in high-performance, high-horsepower applications. Rotate the pinion when tightening the nut to seat the bearings evenly. 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. Backlash = 6-10 (.001 inch) 2003 S-10 ZQ8 - 262/M5:bowtie: 1986 Pontiac Trans Am - 355/A4 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. Our LS swap adapter kits make it easy! IMPORTANT: The pinion preload should be at or below 4 Nm (35 inch lbs.) #5. Too much won't hurt anything other than break the bolt. This results in improved performance, longer life span and more efficient operation of the system. This ensures all parts remain tightly fitted together without any space between them, resulting in increased stiffness as well as reduced friction within the system as a whole. 14 bolts and 10 bolts are different, not sure about changing seals though. GM 8.5 10 bolt - 10 bolt cover with 8.5 ring gear. After that we removed the old bearings and cleaned all the parts up in the solvent tank. Either way, the nut should be tightened to produce 24-32-in-lb of torque to turn the pinion . 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. These protrusions are larger than those on the 7.5 rearend. I have been taking it to ~250-300 ft lbs. Rancho Cordova, CA 95742, Bearing Preload, Backlash and Torque Specifications. 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. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. I also like to put some oil on the seal surface of the yoke to avoid tearing the new pinion seal. When riding a bicycle, the hardest gear available is sometimes necessary for tackling steep climbs and flats alike. Our custom-length driveshaft kits make it a breeze to get the perfect 67-72 C10 driveshaft length. It was used in different models by all GM divisions with the exception of Cadillac. 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. 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. 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. The pinion diameter is 1.438 inches, and has 25 splines. Torque Specs on Dana 60. It's got a 350 with a 10-bolt rear end. The 8.5-inch 10-bolt rearend was used in cars and trucks over a wide range of years. Chrysler 300 and Dodge Charger 2006-2008 Torque Specifications Repair Guide. 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. Axle Type Cover Bolts FT. LBS. It was in the 30-35 I "think" from GM. The side bearing preload is the difference of preloads (5) x the gear ratio (3.73) = 18.65. See other Red Line Oil Products that we recommend. Oct 20, 2011. 1989 GMC Suburban SLE 2500 4WD 5.7L Granny 4-speed. Race-spec ring and pinion gears for desert racing, rock bouncing, and rock . 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. I need the torque on the pinion nut for the rear differential. Since listing them all within this article is impossible, well be focusing only on visual identification. 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. Bear Preload IN. Pinion nut torque (shimmed preload style): 250 ft*lb. The "feel" people are way more experienced that you or I so the top one is re-commended. . Continue tightening the pinion nut to collapse the spacer and preload the bearings. Is a GM 10 bolt rear end good? With the pinion bearing properly lubricated, increase or decrease . In this context, "hardest gear" refers to the ratio of front sprocket teeth to rear sprocket teeth - typically expressed as 4.55:1. With its superior strength and durability, you can count on your PYN10 pinion nut to remain securely in place for years of reliable service. Some builders . The 12-bolt is generally considered to be the stronger of the two rear axles. 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. If you're looking to get the most out of your pickup truck, you may want to consider changing the gear ratios. Use Loctite #271 on the bolt threads and torque in a crisscross fashion to 55 ft-lb. Most 8.2 factory covers also have the strangeprotrusionat the top. GM 10.5" 14 Bolt: 20 to 35 in-lbs. Oct 29, 2001. 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. This gives us confidence in the quality of the parts we sell. Speedway Motors employees enjoy not only helping our customers, but also turning some wrenches in their downtime as well. We'll send you the most interesting Chevy Hardcore articles, news, car features, and videos every week. It is important to have the right pinion nut for your 8.5-inch 10-bolt rearend. I have a leaky pinion seal and housing seal so I am planning on replacing the seals in the very near future. An 8.2 (shown) will have the same contour as the cover. It also uses a 10 5/8-inch irregular-shaped cover. 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. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. This is all with the old crush sleeve. 12 Bolt Rear Axle Torque Specs. Use oil on the pinion nut washer surface during all assemblies . Dana 60. 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. For the fastest service, call our Differential Parts Experts at (800) 510-0950 for immediate assistance. 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. 35-Spline Pinion - 250 ft lbs. A 2.6-3.0 gear ratio range is perfect for flat places and most people find this ratio suitable for their needs. extended cab crew cab p 14 8 6 gm rear axle specifications 10 bolt cont, what are the torque specs on silverado rear diff cover you need rear axle pinion nut torque specs for a 98 chevy 12 ton pickup 2wd the nut is generally torqued to 260 300 ft lbs or 25 inch, proper torque specs for 2002 chevy silverado 1500 44 hub assembly to steering . 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. 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. At West Coast Differentials we are committed to making your experience with us totally enjoyable. If it takes a 5/16-inch wrench to remove it, its an 8.5. As a result, this construction became one of the most popular axle assemblies on the market due to its durability and affordability. Whilethe 10-bolt rearendslineage can be identified by the code stamps, which are usually on the passengers side axle tube, there are literally hundreds ofpotential codes for the three different 10-bolt rearend housings. Again, this would be okay in a daily driver or cruiser application, but if installed behind an engine with horsepower numbers climbing into the 400 range, you can plan on an eventual failure. Not only will you be getting the best quality performance with JEGS Pinion Nut, but you'll also have the convenience of knowing it's made to fit GM 8.875 inch 12-bolt car and truck axles. OEM bolts have thread locker on the threads. When changing a ring & pinion and doing final install of pinion there is no torque spec on the pinion nut itself. 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 : . Some vehicles require an 8.5" 10-bolt pinion nut to secure the rear axle assembly of their vehicle. This ring and pinion setup guide is Copyright Crawlpedia.com - Please provide a link back to this page when copying. 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. 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. 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. Differential cap bolt torque: 90 ft*lb. It saved me time and effort trying to crush a brand new crush sleeve. Pinion Bearing Preload (New) (inch/lbs) Pinion Bearing Preload (Used) (inch/lbs) Backlash (.001 in) Ring Gear Bolt Torque (Foot lbs.) Step 3: Back off 3/8-turn for automatic hubs, and just enough to free the bearing for manual hubs. Quaility Gears provide guaranteed performance. That way, you dont unknowingly spend money on something you really do not want. What is the gear ratio on a 10 bolt rear end? 14 TO 19. Crankshaft Pulley to Hub Bolts 37. Over 6,000 Automotive Torque Specs. For inquiries about our products and services, please fill out the form below. PINION NUT GM 7.5 8.5. 10.50 PINION NUT: GM . I like to slowly tighten the new pinion nut until I take up all of the front to back free play. Set the preload carefully (see "Set Up Specifications") so that the bearings will have a long life. It's essential that you use enough force while tightening down the pinion nut so that your component will stay securely attached; however, it's equally important not to over-torque the part, which could cause permanent damage or deformation. When working on the assembly of a differential, there are two methods for adjusting the pinion depth. The 8.5-inch 10-bolt also shares the same pinion shaft diameter as the more expensive 12-bolt. How Much Hp Can Stock 5.3 Injectors Handle, What Kind Of Gas Does A Jeep Cherokee Take, Popping Noise When Accelerating And Braking. Data is accurate to the best of our knowledge and is offered as-is with no guarantee. It is not an uncommon sight to see a Yukon Gear Pinion Nut when it comes to automotive repairs. 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. Uses 28 or 30 spline c-clip axles. ft. 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. 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. 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. does anyone know the torque specs for a 10 bolt 7.5 for the pinion and carrier caps . 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. Alternatively, shims can also be used to adjust the pinion depth. Chevy Hardcore NEWSLETTER - SIGN UP FREE! If i missed any thing PLEASE tell me. Gear oil is nasty stuff, mostly in smell. 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. Upgrade your cam, intake, headers, stall converter, and the list goes on from there. That does not describe how tight the pinion nut needs to be however. Only 1 nut, it all depends on if your using a new crush collar or not and if your just swapping out the pinion yoke or a full rebuild. Crankshaft Main Bearing Cap Bolts 70. The easiest way to tell the difference is by looking at the brakes. 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. When combined with a low curb weight, this combination creates acceleration so fast it feels almost supernatural. The reliability of the axle tube and . FORD: .020. This difference can cause issues with accuracy and repeatability in some applications, necessitating either higher-end components or additional compensation mechanisms. Gear Ratio Finder - Find the ideal axle gear ratio for your new larger or smaller tires. Here's a link to when I did mine. We show you how to keep that old GM transmission when swapping in an LS engine. If you locate a rearend that has coil spring perches, it could be from a G, A, B-body, or El Camino. All of the parts we sell are also used every day in our busy service shop. Mine is leaking. LBS. The distance between the lower center bolt on the cover and either adjacent bolt is 3 3/4 inches. minimum is 181 ft-lbs., maximum 325 ft-lbs., keep cranking till you get within the range of 7.8-11.3 in-lbs of preload torque on the pinion. 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. Date and location of manufacture are stamped in the axle tube, and this table deciphers the code. Finding a 12-bolt that is affordable, is getting to be anearly impossible endeavor. 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 . I have a 2004 Chevy Silverado 1500, 4.8L engine, 4x4, single cab, 6' bed, what are the torque specs for the drive shaft bolts that bolt the drive shaft into the rear end yolk? Sometimes it feels like youre in a race car when you accelerate hard with a high-torque vehicle. Take Zach R. for instance. Like all Chevy 10-bolts, the axles are retained by C-clips on the inner end of the axle shaft inside the carrier. 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. Connecting Rod Cap Nuts 38. 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 . Sometimes strength is an important factor when choosing between components, and this is true with the 10-bolt and 12-bolt rearends. 9 Minutes Read / Locate a Sierra Gear & Axle Distributor near you. Many mechanics use an impact gun while others insist the nut should be torqued by hand. Crankshaft Pulley to Crankshaft bolt 77. 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. 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. Sie Bear Caps FT. LBS; AMC 20 Install left-side adjusting nut lock, washer, and 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. 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. GM 14 Bolt Specs (all data for SRW truck 14 Bolt axle - others may vary - see table on "different 14 bolts" below) . These are two pinion gears for the 8.5-inch 10-bolt. High-Performance Differentials, Axles & Drivelines, How to Measure and ID Differetial Housings, Filling Trim Holes in Car Body: Sheet Metal Welding Tips, Q&A With Our Race Experts: Tuning and Maintenance Tips, Small Block and Big Block Chevy Engine Flexplate Guide, How to Adapt LS Engine to 700R4 or Turbo 350 Transmissions, Chevy C10 Driveshaft Length Measuring Guide, GM Steering Column Compatibility, Interchange & Repair Guide.

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