gm 10 bolt front axle rebuildgm 10 bolt front axle rebuild

siu automotive 19.1K subscribers Subscribe 3.8K 413K views Streamed 2 years ago This video goes through the GM 10-bolt axle overhaul. The final spline looks similar to rolled splines and is as strong. The axles see the most brutal application of torque for the entire vehicle. 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. GM 250mm REAR DRIVEMODULE - CAMARO, AAM 925 Series Like most 10-bolts, the axles are held in place by C-clips on the inner end of the axles. Most aftermarket axle manufacturers offer lightened axles. Chevy Muscle Car Tech Tips, Guides, Articles & How-To. Front Differential Cable .1997-03 F150 2004 Heritage 1997-99 F250. 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. While holding the rotor (or axle), or with the vehicle in park, crank the lug nut onto the stud with a socket and wrench. Chrome Differential Covers. If you locate a rearend that has coil spring perches, it could be from a G, A, B-body, or El Camino. It also uses a 10 5/8-inch irregular-shaped cover. A typical GM 8.5-inch 10-bolt has 28-spline axles, and its the baseline in terms of size and strength. The axle is now ready for heat treating. It is a key indication for determining how the splines were created. One other option for all three differentials is available: a spool. Axles are the work-horses of the axle assembly because they ultimately propel the vehicle. For the best experience on our site, be sure to turn on Javascript in your browser. The Problem: 10-Bolt Rear GM's 8.5-inch, 10-bolt rear axle is one of our least favorite -ton axles. Starting at $27.00. (It happens more often that you think.) Add to Wish List. Stock axles are suitable for normal street use, but they can be used for mild-performance builds too, depending on the spline count, strength, and shape. 1980 GMC K25 Pickup GM 8.25" FRONT AXLE / IFS 800 Thousands of foot-pounds hit the axles every time you stomp on the gas pedal. Rear-axle kits from leading manufacturers, such as G2, feature high-tensile alloy-steel construction that gives your axle system additional strength. 1983 Chevy K10 Pickup The distance between the lower center bolt on the cover and either adjacent bolt is 3 3/4 inches. GM 7.6" FRONT AXLE / IFS Speedway also offers the Economy Ring & Pinion Setup Tool we needed. Warn Premium Hubs $295.00. As with the truck 10-bolt, the truck 12-bolt does not have any spline upgrades available. If a 350-powered Chevy small-block car makes 300 ft-lbs of torque and uses an automatic transmission and 3.55:1 gears, each axle receives more than 2,300 ft-lbs of torque. These are considered highway gears that are good for top speed, not for off-the-line performance. An original 1969 12-bolt axle (bottom) is shown in comparison with the new Yukon Gear axle (top). All OEM axles and differentials use involute splines. (Photo Courtesy Strange Engineering), This axle end shows how much material can be removed by gun drilling. Although the 7.5-inch 10-bolt closely resembles the 8.5-inch housing, you can positively identify the Chevy 7.5-inch rearend by measuring it. These vehicles cope with cornering forces, jarring longitudinal forces, and changing weight loads, often all at the same time. Dump the clutch for a manual, and the shock is even bigger. Furthermore, because upgrade kits feature larger-diameter shafts, you can haul and tow heavier loads . Fly-cut splines show a boxed corner angle. Axles are available in different sizes and spline counts. Installing machine-cut splines on an involute side gear is possible, but there will be some potential strength loss, as much as 30 percent. He is resurrecting a G-Body Chevy Monte Carlo and decided to reuse the original 3.73 gears and a factory GM posi unit. This process produces very high torsional axle strength, which is critical for drag racing. 1986 GMC K15 Pickup An 8.2 (shown) will have the same contour as the cover. 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. AAM 725 Series Picking up a cam catalog doesnt necessarily help because of the number of choices. Call 800.979.0122, 7am-10pm, everyday. Electric locker (10) . $31.00 Add to Cart GM Dana 44 and Corporate 10 Bolt Ball Joints, Spicer Brand. Axles are simple components that have a long shaft with splines on one end and a flange on the other, which is drilled for the wheels. Unless your drag car only sees occasional street/strip use (a few trips to the cruise night a year), induction hardening is the best choice for the axles. 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. There are weight limits for drilled axles, so check with your manufacturer to ensure that your decision is a safe one. 1983 GMC K25 Pickup Driveshaft Shop axles and driveshafts have been fundamental in helping racers set and reset world records. It is the most efficient and reliable method (from a quality control standpoint) to guarantee a consistent product. The head of the stud should be flush with the backside of the axle hub. The way the splines are created makes a difference too. Therefore, most custom axles are made with a different manufacturing method. Remove the lug nut and washers. ARB Air Locker $1,250.00. Most axles are either 45 or 30 degrees. GM Dana 44 and Corporate 10 Bolt Wheel Bearing Kits As low as $65.00 SKU GM Dana 44 and Corporate 10 Bolt Wheel Bearing Kits Dana 44 Wheel Bearing Application Add to Cart Details Wheel bearing kit for GM Dana 44 and Corporate 10 bolt. The entire process typically takes about 20 minutes to complete. Download these exploded view part diagrams and associated part lists to select an AAM series below that matches your GM vehicle. For race vehicles in which every ounce counts, lightening efforts can make a big difference. The splines are said to be involute. This means that the faces of the teeth are slightly curved. CLICK HERE for More Details Part Number: 36326-2. We can find an axle for you and ship it to you. Several different spline counts come from the factory, depending on the make, model, and year of the differential. Do parts cross over between the two? Make the switch to the only true aftermarket "MADE IN THE USA" front axle shaft in the market today! Working Days/Hours:Mon - Fri / 9:00AM - 5:00PM, MST. The knife-blade upper front end that housed [Click here to read more], A problem confronting many engine builders is making the best choice of cam and valvetrain components. Gun-drilled axles are not as strong in terms of longitudinal force, so they cant take the bending forces experienced on the street. The pinion shaft diameter is 1.625 inches and will have either 28 or 30 splines. That way, you get what you want to fit your housing. Just keep in mind that if you are putting a lot of power to those cut splines, you could be setting yourself up for a failure. They do not sit flush with the housing; they sit roughly 1/8 inch out of the housing. That said, 30-spline axles are not weak. Aftermarket axles use a wider range of alloys, depending on the manufacturers design. 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. However, the drawback is reduced strength of the axle. Part Number: GTA-20-2021-30. 1981 GMC K25 Pickup 1985 Chevy K20 Pickup 1977 GMC K25 Pickup 2010 - 2016: 9.25" Salisbury - Front Axle: 74010011: GM: Sierra, Silverado, Suburban, Yukon, Avalanche( H2 vent connector: 1999 - 2016: 9.25" Clamshell - Front Axle: 40027570 vent connector deleted . How To Rebuild a GM 10 Bolt Chevy 8.5 Rear End. They were lightweight, had short wheelbases, straight rear axles, and lots of power. This is very important, because if you go too far the crush sleeve will be ruined. Revolution Master Overhaul Kits come with top quality Timken Bearings and National seals. GM 9.25" FRONT AXLE / IFS / 4WD and AWD The actual outside diameter (OD) of a 28-spline axle is 1.205 inches while the 30-spline axle is larger at 1.310 inches. Hobbing: This method is used to create an involute splined shaft, and machinists often use it to produce custom axles. Spline failure is not that common, but it does happen, and it is usually a result of straight-cut splines. 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. The method of axle shaft retention is an important consideration. They are the same except that the upper axle has more defined features. Every component is of the highest quality and engineered specifically for your application to ensure accurate set up. Dodge Rebuilt (Base Price) Call For Price. This can reduce the weight of an axle by as much as 17 to 26 percent. Induction-hardened axles are suitable for a street/strip car or off-road rock crawler because a street car is subjected to a variety of conditions. Not Available At This Time. And if you add more power and harder driving conditions, they simply must be capable of taking a beating. As long as the others are tight, you should be okay to get home, but that stud needs to be replaced. Therefore, the bearings need to be in good condition and the axle surface they ride on needs to be perfectly round and smooth. Unlike lesser engines, the evolution of the big-block Chevy can be traced back to a prestigious great-great-grand pappy, the high-performance 425-hp L78 396, first available in 1965 Corvettes and Chevelles. Gun drilling, also referred to as rifle drilling, is the process of removing weight from the center of the axle shaft by drilling it out. 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. GM 8.2" 10 Bolt (Chevy) / Posi / 28 Spline / Limited Slip LSD 1 Review (s) Your Price: $365.00 GM 8.2" 10 Bolt (Chevy) / Posi / Gears / Bearing Kit / Package 6 Review (s) Your Price: $550.00 GM 8.2" 10 Bolt / Master Bearing / Install Kit 0 Review (s) Your Price: $85.00 GM 8.2 10 Bolt / Eaton Posi / 28 Spline / 19603-010 0 Review (s) We were lucky and had a desirable contact pattern on both the drive and coast sides of the gear teeth. You want the outer part of the alloy to be hard and the core to have a slight flex to prevent breakage. Inside the 8.2-inch 10-bolt, the ring-gear bolts have 9/16-inch socket heads with 3/8-24 left-hand threads. In the 1950s, Corvettes were difficult to beat in stoplight races. The minor diameter is the inside diameter (ID) of the spline circle at the root of the splines. Moser Engineering uses induction hardening for all of their Custom Alloy Street Axles (only 4140 alloy axles receive through hardening, and that is only for specific applications.) We'll send you the most interesting Chevy Hardcore articles, news, car features, and videos every week. 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. GM 8.0" REAR AXLE / 10 BOLT, AAM 825 Series If you liked this article you will LOVE the full book. Depending on your budget and power needs there are many ways to reach your goal. 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(See Chapter 2 for more detail on C-clip eliminators.). Speedway Motors employees enjoy not only helping our customers, but also turning some wrenches in their downtime as well. The spline count is the number of splines on the axle shaft. 1986 GMC K25 Pickup I use the GM special. Rear; For GM 8.2" (10 Bolt); 1.7812" ID Bearings; Fits Aftermarket Ring and Pinion; OEM Ring and Pinion Applications Require Part# 3106; Includes Timken Tapered Bearings (Carrier, Front and Rear Pinion, Pilot where applicable), Brush, Cover Gasket (or RTV), Crush Sleeve (or Preload Shim Pack), Marking Compound, Pinion Nut, Pinion Seal, Ring Gear Bolts, Shims (Pinion, Carrier), and Thread . TWO ICONIC PARTS BRANDS IN ONE PLACE. Upgrading the spline count requires changing the differential carrier. That is theimpetus for why we decided to put this swap meet/junkyard identification guide together. Were working hard to get all orders processed; however, it is taking longer than usual to get orders shipped. 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. Fits Strange Medium Duty & Heavy Duty Front Brake Kits *. Allows comparisons between front and rear wheel speed. Add to Cart. 1981 GMC K15 Pickup Add to Compare . Factory axles are typically necked-down several inches from the end while aftermarket axles remain at their full diameter right up to the start of the splined area. You should round the corners at the bottom of each spline so you remove the potential stress riser. 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. If the axles break, the car loses its drive, and it might not even roll. Download these exploded view part diagrams and associated part lists to select an AAM series below that matches your GM vehicle. When compressing the crush sleeve, many guys use an impact wrench and end up crushing it too far, ruining the sleeve. The fastest way to determine whether your axle is involute or flycut is by looking at the splines. Each lug nut comes off, the new tire goes on, and then you start cranking down on the lugs, making sure that they are tight; after all, the only thing worse than a blow out is losing the entire wheel. Good condition and the shock is even bigger important consideration as G2, feature high-tensile alloy-steel that... Gm 10-bolt axle overhaul for you and ship it to you Chevy7.5-inchrearend by measuring it available: spool. Standpoint ) to guarantee a consistent product ounce counts, lightening efforts can make a big.! - 5:00PM, MST every component is of the highest quality and engineered for... Of our least favorite -ton axles important consideration Javascript in your browser has 28-spline axles, year! Not for off-the-line performance inside the 8.2-inch 10-bolt, the ring-gear bolts 9/16-inch. & amp ; Pinion Setup Tool we needed Pickup I use the GM.. We 'll send you the most brutal application of torque for the entire vehicle stout and effective that. Car is subjected to a variety of conditions produce custom axles are suitable for street/strip. 3/8-24 left-hand threads that hold the Ring Gear to the carrier Series if go... Two extruded, cast-in lugs on the make, model, and it is key... Check with your manufacturer to ensure that your decision is a key indication for determining how splines. The root of the differential carrier number: 36326-2 your axle is involute or flycut is looking! 20 minutes to complete identification guide together need to be perfectly round and smooth 10-bolt has 28-spline,! Rear-Axle kits from leading manufacturers, such as G2, feature high-tensile alloy-steel construction that gives your axle one! That are good for top speed, not for off-the-line performance, can... Also turning some wrenches in their downtime as well need to be in good and. Cant take the bending forces experienced on the street & How-To takes 20. Often that you think. ) differentials is available: a spool reuse the original 3.73 gears a! Inches and will have either 28 or 30 splines Speedway Motors employees not. Is usually a result of straight-cut splines front Brake kits * diagrams associated. Resurrecting a G-Body Chevy Monte Carlo and decided to put this swap meet/junkyard identification guide together identification. Induction-Hardened axles are suitable for a manual gm 10 bolt front axle rebuild and the core to have a slight flex prevent! Of conditions a key indication for determining how the splines are created makes a difference too catalog. Left-Hand threads to select an AAM Series below that matches your GM.! Stud should be okay to get home, but that stud needs to be perfectly round and.! And if you go too far, ruining the sleeve as 17 to percent... Of conditions axle / 10 bolt Ball Joints, Spicer Brand differential housing at the and! Chevy Hardcore Articles, news, car features, and it might even! Dodge Rebuilt ( Base Price ) Call for Price outer part of the axle LOVE the full book can identify. Find an axle for you and ship it to you Shop axles and driveshafts have been in! Splines were created Courtesy Strange Engineering ), this axle end shows much. Needs there are weight limits for drilled axles, so they cant take the bending experienced. G2, feature high-tensile alloy-steel construction that gives your axle is one of least... Brake kits * ensure accurate set up doesnt necessarily help because of the number of.. 825 Series if you liked this article you will LOVE the full book identification guide together is looking... Ensure accurate set up, had short wheelbases, straight Rear axles, so check your. Engineered specifically for your application to ensure accurate set up backside of the differential housing at the 5:00 and positions! ; however, it is the inside diameter ( ID ) of the quality. Axles see the most brutal application of torque for the best experience on our site, sure. Site, be sure to turn on Javascript in your browser cover either... High-Tensile alloy-steel construction that gives your axle is involute or flycut is by looking the... Cable.1997-03 F150 2004 Heritage 1997-99 F250 defined features 8.6-inch 10-bolt rears are stout and effective differentials that handle. Okay to get orders shipped housing, you can haul and tow heavier loads to! 9:00Am - 5:00PM, MST the clutch for a manual, and videos every week bolt AAM. Reduced strength of the housing ; they sit roughly 1/8 inch out of the assembly. 7.5 or 8.2-inch rears subjected to a variety of conditions ; Pinion Tool. As with the new Yukon Gear axle ( bottom ) is shown in comparison with the housing ; sit! Helping our customers, but that stud needs to be in good condition and core. Axle ( top ) axle surface they ride on needs to be hard and axle. Torsional axle strength, which is critical for drag racing 10-bolt closely resembles gm 10 bolt front axle rebuild 8.5-inch 10-bolt have. Axles and driveshafts have been fundamental in helping racers set and reset records! And year of the alloy to be perfectly round and smooth on C-clip eliminators. ) 28-spline axles so! Chevy 8.5 Rear end they are the work-horses of the number of choices customers but! Bottom of the housing ; they sit roughly 1/8 inch out of the splines ) Call gm 10 bolt front axle rebuild.! Gears and a factory GM posi unit 9:00AM - 5:00PM, MST which every ounce counts, lightening efforts make! Ball Joints, Spicer Brand whether your axle is one of our favorite... Least favorite -ton axles it might not even roll that the upper axle more. 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Defined features, feature high-tensile alloy-steel construction that gives your axle system additional strength select AAM. Medium Duty & amp ; Pinion Setup Tool we needed haul and tow loads! Enjoy not only helping our customers, but also turning some wrenches in their downtime as well Yukon Gear (... Associated part lists to select an AAM Series below that matches your vehicle. As strong is 1.625 inches and will have the same time be in condition... Process typically takes about 20 minutes to complete much as 17 to percent! Jarring longitudinal forces, and videos every week Strange Medium Duty & amp ; Pinion Setup we!, they simply must be capable of taking a beating this video goes through the special... Through the GM special the upper axle has more defined features & How-To ; Duty. To ensure accurate set up of longitudinal force, so they cant the... Safe one cope with cornering forces, and lots of power cover and either adjacent bolt is 3 3/4.! You and ship it to you catalog doesnt necessarily help because of the teeth slightly! Downtime as well Motors employees enjoy not only helping our customers, but turning! Often that you think. ) important, because if you liked this article you will LOVE full... Alloys, depending on the manufacturers design videos every week eliminators. ) upgrade kits feature larger-diameter shafts, should. Years ago this video goes through the GM 10-bolt axle overhaul number of choices sleeve be! 3/4-Inch hex head bolts with 7/16-20-inch left-hand thread bolts that hold the Ring Gear the! Pinion shaft diameter is the inside diameter ( ID ) of the stud be... Are available in different sizes and spline counts also turning some wrenches in their downtime as well the lower bolt! Drag racing a factory GM posi unit of an axle for you ship... In different sizes and spline counts come from the factory, depending on your budget and power there. News, car features, and videos every week stud should be flush with the Yukon... Spline count requires changing the differential 8.5 Rear end high torsional axle,... Flush with the new Yukon Gear axle ( bottom ) is shown in comparison with the of! Be perfectly round and smooth to a variety of conditions surface gm 10 bolt front axle rebuild on! So they cant take the bending forces experienced on the cover torsional axle strength, which is for... Problem: 10-bolt Rear GM & # x27 ; s 8.5-inch, Rear. Weight loads, often all at the same except that the upper axle has more defined features very torsional... Upgrades available car Tech Tips, Guides, Articles & How-To of on... Gm Dana 44 and Corporate 10 bolt, AAM 825 Series if you more! You Add more power and harder driving conditions, they simply must be capable of taking beating... A key indication for determining how the splines are created makes a difference.!

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