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. Pinion Nut Torque Spec. This is especially true when it comes to cycling. and 12 bolt #s. found these #s at Richmond Gear: Torque specifications. Use the blue medium strength on the retaining bolt and the red on the others. The 8.5-inch is often referred to as the "GM corporate 10-bolt" because of its multiple uses, and the 8.5-inch is a semi-float axle, meaning it has only one axle bearing per side, mounted inside the axle tube. 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. Camshaft thrust Plate bolts 106 in-lbs. These have been around since 1975, and were installedunder cars, small trucks, and vans up to the 2005 model year. It's not easy, but pushing yourself can be rewarding; after all, with hard work come great rewards! Determining the correct flexplate for your V8 Mopar-powered project takes a little understanding of how these engines were balanced. Max Ellery's Land Cruiser Repair Manual 1969-1990 (FJ & RJ) Sure, you know whats in there and what it does but are you willing to tear into it and rebuild the differential? We will safeguard your e-mail and only send content you request. We think top-notch customer service is the most important thing we do. PINION PRELOAD NEW INCH LBS. Well help you determine the correct flexplate for your Chevy engine in this buyers guide. Build your own custom newsletter with the content you love from Chevy Hardcore, directly to your inbox, absolutely FREE! 2/3 drop, HP Tuned, Built 60e, 4.10s, Yukon Duragrip, etc. ring gear bolts torque at 175lb/ft, bearing cap bolts torque at 200lb/ft, and the ring gear backlash should be between .006-.010 for aftermarket gears, .005-.007 for OEM gears. CAP TORQUE. lbs.) You will also notice the large, flat, cast-in protrusions at thefive andseven oclock positions. If i missed any thing PLEASE tell me. Talk to the experts. I have a leaky pinion seal and housing seal so I am planning on replacing the seals in the very near future. 8-11 in/lbs for broken in bearings is acceptable. For inquiries about our products and services, please fill out the form below. The lower end of this range will give you a cadence of 90 rpm which translates to an average speed of 30 km/h while the upper end will get you going up to 34 km/h. The small torque . New bearings 19 to 22 inch pounds. An important step I like to take is to assemble the pinion and differential case without the crush sleeve or the new pinion nut. 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. Set the preload carefully (see "Set Up Specifications") so that the bearings will have a long life. We were lucky and had a desirable contact pattern on both the drive and coast sides of the gear teeth. CHECK FREQUENTLY as you progressivley tighten the pinion nut. Step 1: To seat, torque nut to 50 (lb-ft) while spinning hub. FOR 1994-2001 CHEVY S10's & GMC SONOMA's. **ALL TORQUE SPECS ARE PER GM FACTORY & HAYNES MANUAL**. Speedway also offers the Economy Ring & Pinion Setup Tool we needed. 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? When looking at the housing from the rear, an 8.5 will have two squared off chunks of casting hanging on each side near the bottom of the differential. First I measured the old crush sleeve as a starting point. 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. I like to slowly tighten the new pinion nut until I take up all of the front to back free play. Backlash = 6-10 (.001 inch) 2003 S-10 ZQ8 - 262/M5:bowtie: 1986 Pontiac Trans Am - 355/A4 Im gonna go buy a good manual for shit like this. See all 36 photos. 9 Minutes Read / The distance between thebottom center bolt in the cover and its adjacent bolts is 3 1/4 inches. Some pinion nuts require a special procedure to be properly installed. GM: .035. I have a 1993 Suburban K1500. I used an 18" breaker bar with a 2 foot pipe on the end of it in order . 1. 1988 C1500 Silverado, 5.7L with some go fast parts. #5. 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. 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. 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 is done in order to decrease pre-load on the bearings; adding more shims will have an overall effect of decreasing it. It is important to have the right pinion nut for your 8.5-inch 10-bolt rearend. 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 said you want this to be from 5-35. When installing a new 8.5-inch 10-bolt rear differential, it is important to use the right pinion nut for your application. The number of teeth on each of these gears determines how much rotational force is converted into torque or speed. I have been taking it to ~250-300 ft lbs. 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 . It also has an inner diameter of 1 . Is that really all it takes? 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. . Replace original worn or damaged nuts each time a gear set is changed. It also uses a 10 5/8-inch irregular-shaped cover. In either case, it is important that this critical adjustment be performed correctly in order to avoid costly repairs or replacements down the line. Preload plays an important role in many machine designs for its ability to reduce wear and tear on critical components while improving efficiency and accuracy. If the backlash is too tight, you'll need adjust the carrier shim by moving it away from the pinion. It is well known that altering the gear ratio of a vehicle, whether it be through changing the pinion or spur gear, can have a significant effect on performance. GM 10 Bolt 8.2; GM 10 Bolt 8.5; GM 12 Bolt 8.875; GM 8.6 IRS; GM Install Kits; MOPAR. The pinion nut should then be secured and tightened until there is no bearing play at all. You will need to know that there are different series of differentials (seriestwo and three). Sometimes, pinion bearing preload can be a tricky procedure. Rotating torque should be equal to the reading recorded during removal plus an additional 0.56 Nm (5 inch lbs.). If your mom is lunch, then yes, I've eaten lunch twice today. 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. We believe that our exceptional customer service and product knowledge is what sets us apart from the competition. Once you get close to the right pinion preload, shim thickness adjustments need to be made in the .003 and down range to make adjustments, small increments make a big difference in pinion preload. The specified preload needs to be obtained by carefully crushing the spacer with just enough force from turning the pinion nut in order for it not to be too loose or too tight, as either one can cause serious damage if done incorrectly. 2 ways. . Tightening Torque Clamp Load (lbs.) Oct 29, 2001. The purpose of preloading a bearing is to eliminate any existing clearance that has been designed into standard ball bearings by utilizing tension or compression loads applied directly onto each component within the assembly. Looking for a driveshaft for your 67-72 C10? We'll send you the most interesting Chevy Hardcore articles, news, car features, and videos every week. you have it pretty much. 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. Products include ring and pinion sets, installation kits and axle shafts for GM, Ford, Chrysler, Jeep, and Toyota vehicles. 3.08 and numerically lower gears = 1.660-inch, 3.23 and numerically higher gears = 1.950- inch, 2.73 and numerically lower gears = 1.615-inch, 3.08 and numerically higher gears = 2.00-inch, 2.56 and numerically lower gears = 1.530-inch, 2.73 and numerically higher gears = 1.720-inch. 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. 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 combined with a low curb weight, this combination creates acceleration so fast it feels almost supernatural. Its strength and reliability have been proven time again, making it an excellent option for drivers looking for reliable performance from their vehicle. Search Car Torque Specifications by Engine or Model How Much Hp Can Stock 5.3 Injectors Handle, What Kind Of Gas Does A Jeep Cherokee Take, Popping Noise When Accelerating And Braking. I am also replacing all the bearings on my son's 97 Chevy rear end. The 8.5-inch pinion diameter is 1.625 inches, whereas the 8.2-inch is smaller at 1.435 inches. 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. without any detrimental effects occurring. 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. 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. Backlash refers to the distance between two mating gear teeth when they are not engaged. MODEL 20. We talked to a few of our in-house race experts about ways to make this racing season your best one yet! It saved me time and effort trying to crush a brand new crush sleeve. 2429 Mercantile Drive Suite A, Rancho Cordova, CA 95742, Copyright 2023 West Coast Differentials | Website Design by. This process helps increase longevity of both the pinion gear and its tapered bearings while also providing optimal performance from both components at all times. If it takes a 1/2-inch wrench to remove it, its an 8.2. 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. Axle Type Cover Bolts FT. LBS. 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. ft. Sometimes, you need to push yourself. I don't use it on the bearing cap bolts. For that reason,many enthusiasts are considering the 10-bolt. Peter - I'm retired but work part time as a pain in the ass. With this pinion nut, you can rest assured that your vehicle will be ready for whatever terrain comes its way! His passion for performance got him noticed by many locals, and he began helping them modify their vehicles. If the nut is loose then the crush sleeve must be changed. All rights reserved. In most cases, however, even with a straight case, a certain degree of backlash can be tolerated up to 0.005? If you locate a rearend that has coil spring perches, it could be from a G, A, B-body, or El Camino. It is robust enough to withstand any punishment inflicted on it by racetrack use. The inch pound rating is the force required to turn the pinion after the crush sleeve has been crushed. checking the pre load with the inch lb torque . does anyone know the torque specs for a 10 bolt 7.5 for the pinion and carrier caps . Used bearings 10 to 14 inch pounds. You can use this instead of the crush sleeve. Mikz86TA. 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. In this context, "hardest gear" refers to the ratio of front sprocket teeth to rear sprocket teeth - typically expressed as 4.55:1. (note make sure the pinion bearing is well oiled when doing this procedure.) The oval-shaped cover measures 8 5/16 inches by 10 9/16 inches. Torque measures the amount of force that is generated when the engine rotates at a certain speed. Bearing Cap Torque (Foot Lbs.) 1989 GMC Suburban SLE 2500 4WD 5.7L Granny 4-speed. How to eliminate unwanted to holes in your car's body, trunk, floor, or firewall with easy to use patch plugs from Speedway Motors. 8-10 ft lbs: None: None: GM 12 Bolt Car: Torque: Lubricant: Thread Locker: Main Caps: OEM Housing: . Usually, when people are discussing gear ratios, theyre referring to the relationship between a pinion gear and a spur gear. It is essential to ensure that the pinion flange is firmly held in place with a fixture or tool. 14 TO 19. When compressing the crush sleeve, many guys use an impact wrench and end up crushing it too far, ruining the sleeve. 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. 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. Nov 18, 2016. Shop Differential Pinion Bearing Spacers and Sleeves at Summit Racing. 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. Some builders . GM 10.5" 14 Bolt: 20 to 35 in-lbs. We have your differential parts in stock ready to ship today. This is in contrast to high-end torque, which describes how much power and force is produced by an engine at higher RPMs, such as 4000 or 6000. 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. Dana 60. Many times when you are rebuilding an existing rear end you want to save the original pinion bearing shim and re use it under the new bearing. 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. So, when adjusting preload, if it is too loose then the shims should be removed. 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. Tighten bolt to 20 ft/lbs. The pinion nut is designed to securely fasten the components together while also providing an effective seal against contamination from dirt, dust and other debris. 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. The most current parts and application information can always be found here on our website or by calling one of our differential parts experts. May 22, 2021 / Additionally, it increases load capacity because it prevents misalignment due to vibration or thermal expansion of components. When the preload of the pinion bearings is incorrectly adjusted, it can have serious consequences. . FORD: .020. Like most 10-bolts, the axles are held in place by C-clips on the inner end of the axles. The large flanges are easy to grip and make installation or removal easier than ever before, allowing you to easily tighten or loosen the nut without fear of it slipping away. I reused the old crush sleeve and just added a thin shim out of the set to be able to get the pinion preload using the old crush sleeve. 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. Inch pound torque wrench that will read that low of a number which will be "VERY" costly. It is not an uncommon sight to see a Yukon Gear Pinion Nut when it comes to automotive repairs. 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. The trick is to get it tight as possible without crushing the sleeve any more then it already is crushed. 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! 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. 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. 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.) Our Mopar flexplate buyers guide will help. 5. put back together and tight pinion nut to specified torque. In addition, if a crush sleeve is over-crushed during installation then it must be discarded and replaced with a new one as it will no longer be able to provide the necessary level of tension between the bearings for them to function properly. 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. Follow along as Zach works over the old 10 bolt and brings it back to life. It's got a 350 with a 10-bolt rear end. Sierra Gear & Axle parts are designed and engineered to the highest quality specifications for use in street, off-road and performance environments. I thought the pinion nut would be more like 50-75 FOOT pounds? The concept of low-end torque is an important one for drivers to understand when it comes to the performance of a vehicle. 3. remove yoke from splines. carrier bearings, races, crush sleeve, pinion nut, pinion seal, a gasket and even has the gear marking grease included. If your just swapping the pinion yoke out or putting in a new pinion seal and your re-using the old crush collar, just tighten the nut back down till ALL the slop is gone and then tighten about a 1/4 turn more to make sure there is tension on the old crush collar. Is a GM 10 bolt rear end good? Differential Locker Comparison - A detailed comparison of popular differentials and lockers. There is no way to happiness.happiness is the way. . The pinion nut is a 32mm or 1 1/4" so you need a socket and adapters for that. If you are installing an axle and need to know the torque specs, it is important to first understand what torque is. West Coast Differentials has been distributing quality differential and axle parts since 1982. TORQUE-TENSION REFERENCE GUIDE Printed in U.S.A. Supply Part Number: 9702365 AS 06/14 Torque Poster . You keep on tightening the pinion nut until you are within the in-lb. ExtCab96S_Dime . Inside, the ring-gear bolts are the same as the 8.5 corporate unit, but the pinion-shaft diameter measures 1.438 inches. 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. These protrusions are larger than those on the 7.5 rearend. 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. Sometimes it feels like youre in a race car when you accelerate hard with a high-torque vehicle. The pinion diameter is 1.438 inches, and has 25 splines. Or some do it by feel. 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. This ring and pinion setup guide is Copyright Crawlpedia.com - Please provide a link back to this page when copying. OEM bolts have thread locker on the threads. 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. Currie 60/70 : Torque . Rightfully so, because when comparing the 10 and 12-bolt units, its definitely the more durable of the two. Too much won't hurt anything other than break the bolt. 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. If you installed a new seal, add 1 or 2 in-oz. 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. Randy Bolig has been working on cars and has been involved in the hobby ever since he bought his first car when he was only 14 years old. Many mechanics use an impact gun while others insist the nut should be torqued by hand. Currie 44 : Torque: Pinion Nut (Solid Spacer) 250 ft lbs. The X and F-body spring perches come in two versions: mono-leaf (left) which is shallower than the multi-leaf (right). 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! Pinion preload (new bearings): 17 - 30 in*lb. 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. It was in the 30-35 I "think" from GM. 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. Back off left-side adjusting nut approximately 2 slots. 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. However, the gears will not interchange with a Chevy 8.2. Axle Retainer Plate Nuts: 3/8" T-bolts - 30 ft lbs. Ring and Pinion Ratio Variations - An explanation of why some ring and pinion gear ratios vary. Just out of curiosity,what are the 8.5 (r 65lbft & c 60lbft ?) 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. Record pinion flange rotating torque, with a torque wrench. 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. stock 4L60E on 5th filter/fluid change; 2nd set of drive shaft u . When a very slight increase in pinion turning effort is noted, check the pinion rotating torque using an inch-pound torque wrench. 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. 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. This should result in approximately 7 thousandths of an inch adjustment in terms of backlash. Originally, gear ratios ranged from 2.41 through 4.10. Pinion nut has no torque spec. Introduction. What is the gear ratio on a 10 bolt rear end? How a GM 10-Bolt Differential Goes Bad. Well show you what to look for in this buyers guide. 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. Read More. But, did you know there is more than one style of 10-bolt rearend? VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. Rotate the pinion when tightening the nut to seat the bearings evenly. The "feel" people are way more experienced that you or I so the top one is re-commended. Axle Retainer Plate Nuts: 3/8" Grade 8 - 45 ft lbs. 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. Torque is a measure of rotational force that must be applied in order to secure components such as axles and other parts together. How involved is the process of changing it? Pinion preload (used bearings): 8 - 10 in*lb. Its strength and durability make it an ideal choice for those who want to take their car out for some fun on the track without having to worry about its performance or reliability. This tension is achieved through a collapsible spacer which is placed between the bearings and then compressed by turning the pinion gear nut. If in doubt, consult our staff of differential parts specialists. 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. 10.50 PINION NUT: GM . Here's a link to when I did mine. I also like to put some oil on the seal surface of the yoke to avoid tearing the new pinion seal. I agree that the preload needs to be about 30 inch pounds. These are incredibly robust pieces of machinery that can handle a surprising amount of power, as long as you use the right axle for your application. Date and location of manufacture are stamped in the axle tube, and this table deciphers the code. **Note the Pinion nut is in INCH pounds Ring Gear Bolts = 55 lb. for new bearings. A forum community dedicated to GMC and Chevy full size owners and enthusiasts. Alternatively, shims can also be used to adjust the pinion depth. to do this. That's all fine and dandy but my pinnion was chewing it's way through the carrier and now I can't get the passenger side c clip to drop out.