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. 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. We'll send you the most interesting Chevy Hardcore articles, news, car features, and videos every week. Currie 60/70 : Torque . 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. 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. 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. . GM 10.5" 14 Bolt: 20 to 35 in-lbs. 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. MOPAR: 8.75" x 1.75" pinion: .090. . You can feel the power of all that torque in your bones as it propels the car forward even faster than before. Looking for a driveshaft for your 67-72 C10? The pinion diameter is 1.438 inches, and has 25 splines. This will help ensure that there isn't an excess of tension on these components, which can lead to premature wear or even failure. You can rest assured knowing that your axle is secured with this high quality product. So, when adjusting preload, if it is too loose then the shims should be removed. An 8.2 (shown) will have the same contour as the cover. 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. The date and location of manufacture coding changed in 1971. This is especially true when it comes to cycling. 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. on new bearings, or 1.2 Nm (10 inch lbs.) 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. big gear head. 35-Spline Pinion - 250 ft lbs. 4.replace seal. (note make sure the pinion bearing is well oiled when doing this procedure.) By doing this, it allows for the desired amount of pressure or preload to be applied on these bearings so they are able to work in harmony with each other within their particular drivetrain system. Pinion Nut Torque Spec. 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! The 8.5-inch pinion diameter is 1.625 inches, whereas the 8.2-inch is smaller at 1.435 inches. Automotive Chassis Torque Specs. Ring Gear Diameter: 8.500Cover Bolts: 10Ring Gear Bolts: 10Ax . The Series 3 carriers are good for use with 2.73 and lower gears (numerically higher), so 3.08 and 3.73 gears work well. The unique design and shape make installation easier while providing ample strength for off-road applications. Introduction. 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. So, in order to adjust the pinion bearing pre-load, shims of varying thicknesses are inserted into pre-load retainers. 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. Most 8.2 factory covers also have the strangeprotrusionat the top. It saved me time and effort trying to crush a brand new crush sleeve. Next remove the nut and change the seal. 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. 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. 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. One is the small, 7.5-inch, another is the 8.2-inch, and yettwo more are the 8.5 and 8.6-inch. 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. When installing a new 8.5-inch 10-bolt rear differential, it is important to use the right pinion nut for your application. 7/16" x all lengths 60-65 ft lb. While a carrier-bearing girdle is available for the 8.2-inch rearend and does give some support to the housing it doesnt provide a reliable and suitably strong solution. 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. on old bearings. 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. Part Number. The small torque . Ring gear bolt torque: 110 ft*lb. A forum community dedicated to GMC and Chevy full size owners and enthusiasts. Tighten bolt to 20 ft/lbs. 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. But, did you know there is more than one style of 10-bolt rearend? Backlash = 6-10 (.001 inch) 2003 S-10 ZQ8 - 262/M5:bowtie: 1986 Pontiac Trans Am - 355/A4 1. Products include ring and pinion sets, installation kits and axle shafts for GM, Ford, Chrysler, Jeep, and Toyota vehicles. The "feel" people are way more experienced that you or I so the top one is re-commended. 8-11 in/lbs for broken in bearings is acceptable. Replace original worn or damaged nuts each time a gear set is changed. That does not describe how tight the pinion nut needs to be however. sny 00235 converted Tightening Torque Clamp Load 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. Rightfully so, because when comparing the 10 and 12-bolt units, its definitely the more durable of the two. Yukon Gear & Axle SK CSGM8.5 Yukon Gear & Axle Crush Sleeve Eliminator Kits | Summit Racing. 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. First I measured the old crush sleeve as a starting point. 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 ring and pinion setup guide is Copyright Crawlpedia.com - Please provide a link back to this page when copying. Rancho Cordova, CA 95742, Bearing Preload, Backlash and Torque Specifications. When working on the assembly of a differential, there are two methods for adjusting the pinion depth. There are a few that have geared axles on here so they should chime in and help out with Real TECH :rocking: The X and F-body spring perches come in two versions: mono-leaf (left) which is shallower than the multi-leaf (right). Learn more about GM steering column identification, GM steering column lengths, and GM steering column compatibility. stock 4L60E on 5th filter/fluid change; 2nd set of drive shaft u . It is therefore important to strike a balance by carefully adjusting the backlash so that it meets manufacturer requirements for that particular differential system. Mikz86TA. BACK LASH 0.000". Sure, you know whats in there and what it does but are you willing to tear into it and rebuild the differential? Axle Order Form; Floater Axle Order Form; Custom Driveshaft Order Form; . 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. The following table contains the proper specifications for all popular axles. 2. unbolt pinion nut. GM: .035. The 8-inch rear axle looks very much like the popular Ford 9-inch rear axle. When combined with a low curb weight, this combination creates acceleration so fast it feels almost supernatural. The rotating torque must be 2 to 3 N-m (15 - 25 inch pounds). When riding a bicycle, the hardest gear available is sometimes necessary for tackling steep climbs and flats alike. Speedway also offers the Economy Ring & Pinion Setup Tool we needed. The more torque produced, the less energy needed to move the car forward. Step 1: To seat, torque nut to 50 (lb-ft) while spinning hub. 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. IMPORTANT: The pinion preload should be at or below 4 Nm (35 inch lbs.) 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. Typically, 10-bolt differentials are specific to a series of gears. Ring Gear Backlash Ring Gear Bolts to Cast FT. LBS. It said you want this to be from 5-35. 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. Shop for New Auto Parts at 1AAuto.com http://1aau.to/c/553/e/driveshaftThe differential Pinion Flange is part of the universal joint that connects the drive . When it comes to Chevrolet rearends, its the 12-bolt that seems to get all the accolades. Rotating torque should be equal to the reading recorded during removal plus an additional 0.56 Nm (5 inch lbs.). Crankshaft Pulley to Hub Bolts 37. I also like to put some oil on the seal surface of the yoke to avoid tearing the new pinion seal. GM 8.875" 12 Bolt Differential Ring Gear and Pinion Set. Inside, the ring-gear bolts are the same as the 8.5 corporate unit, but the pinion-shaft diameter measures 1.438 inches. Follow along as our employee Zach installs a GM 10 bolt rebuild kit from Motive Gear. It is internally different from the 8.2 Chevy, but has the same external bosses and brackets. We will safeguard your e-mail and only send content you request. 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. By Albert. Loosen the right-side adjusting nut and tighten the left-side adjusting nut until the ring gear contacts the pinion without binding. 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 oval-shaped cover measures 8 5/16 inches by 10 9/16 inches. 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. When a very slight increase in pinion turning effort is noted, check the pinion rotating torque using an inch-pound torque wrench. FORD: .020. Ultimately, both engine power and torque play important roles in determining a cars performance capability as well as its overall efficiency. Rotate the pinion when tightening the nut to seat the bearings evenly. Alternate Description. 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. All of the parts we sell are also used every day in our busy service shop. 8 to 11 in-lbs. Upon initial . Like all Chevy 10-bolts, the axles are retained by C-clips on the inner end of the axle shaft inside the carrier. 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. **Note the Pinion nut is in INCH pounds Ring Gear Bolts = 55 lb. Carrier Cap Bolts. With the carrier removed w/ new bearings pinion bearing preload should measure a rolling torque of 20-30 in/lbs. If you installed a new seal, add 1 or 2 in-oz. We promise not to use your email address for anything but exclusive updates from the Power Automedia Network. You can replace the pinion seal without changing the crush sleeve. For inquiries about our products and services, please fill out the form below. 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. These are two pinion gears for the 8.5-inch 10-bolt. Give us a try, we think you'll be glad you did! When changing a ring & pinion and doing final install of pinion there is no torque spec on the pinion nut itself. 1/2" T-bolts - 50 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. Pin. Is that really all it takes? Come join the discussion about performance, lift kits, wheels, tires, modifications, troubleshooting, maintenance, and more! Gear oil is nasty stuff, mostly in smell. What size is pinion nut Silverado? With the pinion bearing properly lubricated, increase or decrease . Lifted78Chevy. Build your own custom newsletter with the content you love from Chevy Hardcore, directly to your inbox, absolutely FREE! 5. put back together and tight pinion nut to specified torque. Bear Preload IN. 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. 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. range. When I changed all the bearings in my suburban rear end, I bought the crush sleeve eliminator shims from Summit. Both axles use a third member that contains the differential, which is made up of the . When you purchase through links on our site, we may earn an affiliate commission, which supports our community. 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. Sometimes, pinion bearing preload can be a tricky procedure. 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. 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. DIFF MODEL. Zone 1.5 BL, 22x12s, California delete, Detroit TrueTrac, etc. Its strength and reliability have been proven time again, making it an excellent option for drivers looking for reliable performance from their vehicle. 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. DANA SPICER: .035. All rights reserved. 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. (Note: The 7.5 GM rear used different pinion bearings in 1979-80 vs. the 81-up axles, so you want to make sure that the old bearings match up to your new pinion bearings). 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. Unfortunately, once this tension has been released the crush sleeve cannot hold it again. Inside the 8.2-inch 10-bolt, the ring-gear bolts have 9/16-inch socket heads with 3/8-24 left-hand threads. However, the gears will not interchange with a Chevy 8.2. 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. 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? 8-10 ft lbs: None: None: GM 12 Bolt Car: Torque: Lubricant: Thread Locker: Main Caps: OEM Housing: . Differential cap bolt torque: 90 ft*lb. These are considered highway gears that are good for top speed, not for off-the-line performance. 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 . GM 14 Bolt Specs (all data for SRW truck 14 Bolt axle - others may vary - see table on "different 14 bolts" below) . 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. 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. If too tight, the bearings become overstressed and will fail prematurely, causing a catastrophic failure of both the ring and pinion gears. SPEC Clutches: For That Next Engine Swap Or OEM, Shop Tour: Brian Tooley Racing Expands To Be A One-Stop, Moroso Anti-Roll Kit Is The Right Tool For The, Steer Your Classic Ride Straight With A New CPP Steering, NEW LS Bellhousing For Magnum And T56-Shifted Hot, Fenix Is A Next-Gen 69 Camaro With 1,180, A Brothers Quarrel Results In This Fine 1955 Chevy, Is This Barn Find The Worlds First Corvette? 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. Edit: 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. Thats usually proven when used in high-performance, high-horsepower applications. Gear Ratio Finder - Find the ideal axle gear ratio for your new larger or smaller tires. Unfortunately, you cannot rely on this torque because the crush sleeve provides unpredictable and non-linear resistance as it buckles and crushes. 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. 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. This is all with the old crush sleeve. Uses 28 or 30 spline c-clip axles. 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. With its strong construction and corrosion resistant coating, the PYN10 provides reliable performance for years to come, making it one of the best choices you can make when securing your vehicle's rear axle assembly. Over several generations of small block Chevy (and big block Chevy) engines there have been several changes that dictate what flexplate works with them. 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.