Do parts cross over between the two? Picking up a cam catalog doesnt necessarily help because of the number of choices. 1980 Chevy K10 Pickup Click the button below and we will send you an exclusive deal on this book. Which is better? Recently a friend enlisted me to help rebuild his 7.5 GM 10 bolt. Its something you would expect from a performance part, rather than a mass-produced factory piece. Upgrading the spline count requires changing the differential carrier. It first appeared in 1970 production cars as a corporate replacement for the 8.2-inch 10-bolt rearend. Not Available At This Time. 18 Steel Discs, GM 8.2 10 Bolt/8.875 12 Bolt, Kit. Another key characteristic of the spline is its shape. 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. GM 8.25" FRONT AXLE / IFS 900, AAM 860 Series Spline failure is not that common, but it does happen, and it is usually a result of straight-cut splines. GM 7.25" FRONT AXLE / Oil Pan Mounted IFS / 4WD and AWD, AAM 760 Series A GM 10 bolt upgrade kit gives you everything you need to beef up your existing axle setup. 1986 GMC K15 Pickup Therefore, the bearings need to be in good condition and the axle surface they ride on needs to be perfectly round and smooth. GM Dana 44 and Corporate 10 Bolt Spindle Seal and Bearing Kit, All Years. Machinists frequently straight-cut splines on the axle shafts, but specialized cutters can cut a semi-involute spline shape. The only stock axles available for the GM truck 10- and 12-bolt units are 28-spline, and this axle shaft fits only the 8.5-inch 10-bolt. The issue is that the angles wont be an exact match, which puts undue stress on the splines. Revolution Gear and Axle GM 8.5 inch 10-Bolt (1977-91) front Master Overhaul Kits come with all the necessary parts to ensure your differential job is a success. Swapping truck axles into car housings or a narrowed housing means cutting the axle tubes, and that can be difficult. 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 molecules of the metal align, becoming denser, and thus the metal is stronger. All modern axles are designed with a 24-degree angle for the splines. Drivetrain. Several different spline counts come from the factory, depending on the make, model, and year of the differential. GM 8.5" 10 Bolt Ring & Pinion Gear Set. Detroit Locker call for price. Most axles are either 45 or 30 degrees. Now that the hard part is done you can re install the carrier with the shims in place, torque the bearing caps and run one more contact pattern to make sure everything is good to go. Eliminators retain the axle at the end of the axle tube flange, so if the axle breaks, the wheel does not come out of the car. 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. 1977-87 Front Differential - GM 10 Bolt with 8-1/2" Ring Gear and 30 Spline Pinion Vehicle Selector Shop Parts Accessories Body Components Bumpers Chemicals & Paint Door Components Electrical Fuel System Grilles Interior Lighting Mechanical Mirrors New Steering Suspension Wheels & Hubcaps Chevrolet GMC Ford Dodge Van New Products Product Videos One thing often overlooked is the RTV sealant that needs to be applied to the splines (otherwise rear end grease can leak past the splines), and locktite on the new pinion nut. GM Corporate 8.5 inch 10 bolt front axle and differential parts including universal joints, axle shafts, wheel bearings, ball joints, spindles, gears, diff carrier, spider gears, bearing kits, shims, crush collar, seals, spindle nuts, pinion yokes and more at Denny's Driveshafts . The axle is now ready for heat treating. On this episode of Dirt Every Day Extra, Fred Williams and Dave Chappelle ask Offroad Designs Stephen Watson for some insight on these solid front axles and discuss which one you really want.https://www.motortrendondemand.com/subscribe/freetrial/?bnr=organic:bnr:yt:dede:ep233_fr_de:link:na:mtod GM 8.6" REAR AXLE / 10 BOLT MULTILINK, AAM 218mm That doesnt mean that you will always get disqualified from the track if you have a stock-axle GM 12-bolt with C-Clips, but the particular car could. Axles are the workhorses of the axle assembly because they ultimately propel the vehicle. $130.99. (Photo Courtesy Strange Engineering). Another way to tell the difference between an 8.2 and an 8.5 rearend is to pull the cover and look at the bolt holding the spider gear crosspin. Stock Chevy 10- and 12-bolt axle assemblies support up to 400 hp on street tires, with less on drag radials and even less on slicks. The bearing is moved about 1 inch from the inside to the outside of the axle where it should ride on fresh steel. GM 7.25" FRONT AXLE / IFS / 4WD and AWD GM 8.6" Yukon Master Overhaul Kit | '09 and Newer The X and F-body spring perches come in two versions: mono-leaf (left) which is shallower than the multi-leaf (right). This low-carbon, high-manganese, high-nickel, and high-molybdenum steel was originally developed for landing gear in military aircraft, making it a logical choice for race axles. 1981 GMC K25 Pickup Speedway also offers the Economy Ring & Pinion Setup Tool we needed. You need to order a set of uncut axles with no bolt pattern or splines and have your local guy do the finish work. $ 260.00. You can also remove weight from the wheel hub to lighten the axle. First, you must determine whether you are building a motor using the familiar two-piece rear main oil seal or with the new-style one-piece rear main seal that was first [Click here to read more], Upgrading your Chevy or GMC C10s suspension may seem like a daunting project, but its not that challenging if you take things slowly and approach the front first and then the rear. If youre building a street car and want to improve performance, we all know the drill. Axle blanks are forged for strength and then machined to match the profile necessary. GM 10.5" REAR AXLE / 14 BOLT, AAM 1150 Series The LS swap is no doubt still going strong, but if youre planning to run an automatic behind your 4.8, 5.3, or 6.0L LS-powered ride, youll need to pay attention to a few items we discuss in this buyers guide. (Photo Courtesy Strange Engineering). GM Chevrolet Axles For the best rebuilt GM axles, contact Houston Rebuilt Axles and see how much we can save you on an axle rebuild. Moser Engineering uses 1541H alloy steel for all of their axles, including stock replacement axles. Part Number: B4200-K4. 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. We promise not to use your email address for anything but exclusive updates from the Power Automedia Network. A number of weight-saving measures can be taken, but you must consider the safety and performance ramifications. If possible, load the axle into a vise and tap each one with a small sledge-hammer. Call 800.979.0122, 7am-10pm, everyday. The aftermarket offers the passenger car 12-bolt with larger 33- and 35-spline axles. JavaScript seems to be disabled in your browser. This is one of the greatest assets of the Ford 9-inch. The Family Tree. Most OEM axles are made from either 1039 steel (for flange-mount bearings) or 1050 steel (for C-clips). A press is the best method if you have one available. 1978 GMC K25 Pickup There are weight limits for drilled axles, so check with your manufacturer to ensure that your decision is a safe one. That way, you dont unknowingly spend money on something you really do not want. The axle bearings, or wheel bearings, must support the entire weight of the vehicle. 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. Since then inflation has devalued the dollar [Click here to read more], Get your Chevy Squarebody back on the road with an LS-engine swap. The stronger the alloy, the stronger the axle. For example, a 700-hp full-race drag car with slicks and a transmission brake would put more stress on the driveline than a street-tired foot-brake car with 1,000 hp. These kits are available for the 10- and 12-bolt housings from Moser Engineering, Yukon Gear, and Strange Engineering. But you dont have to buy custom axles for every car and application. 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 . Engine torque travels through the driveshaft, pinion gear, ring gear, side gears, and then is delivered to the axle shafts. Furthermore, because upgrade kits feature larger-diameter shafts, you can haul and tow heavier loads . A repair bearing provides a solution to typical bearing damage. Here are a few ways to get that custom engine bay. Fords small block and big block engine families have their share of flexplate differences. By switching to a spool from a differential, you have more room for larger-diameter axles. Chevy Muscle Car Tech Tips, Guides, Articles & How-To. When compressing the crush sleeve, many guys use an impact wrench and end up crushing it too far, ruining the sleeve. Most high-performance cars run sticky tires, so these forces dramatically increase, putting several hundred tons of force on the bearings and the 1/4-inch-thick area that retains the C-clip. The final spline looks similar to rolled splines and is as strong. Description. DriveShaft Shop engineers have been creating and manufacturing innovative drivetrain solutions for street and racing use for over 30 years. An easy and common way to increase dragstrip ETs is to shave a little weight off the axle. Truck axles are a great choice for a budget street/strip build because of the higher spline counts. The 8.5-inch 10-bolt rearend was used in cars and trucks over a wide range of years. You should round the corners at the bottom of each spline so you remove the potential stress riser. Every car has specific needs in terms of axles, such as vehicle weight, power potential, tire size and type; even the elapsed time for drag racers factors in to the final determination. GM 8.5" 10 Bolt Master Bearing / Install Kit. GM 8.25" FRONT AXLE / IFS 800 Thats usually proven when used in high-performance, high-horsepower applications. The seal is integrated into the bearing housing, making it a one-piece component. A Series 2 carrierwill work with 2.56 and higher gears (numerically lower) such as 2.41. These have been around since 1975, and were installedunder cars, small trucks, and vans up to the 2005 model year. Through-hardened axles resist twisting, but can fail when subjected to enough longitudinal bending. The method of axle shaft retention is an important consideration. Speedway Motors employees enjoy not only helping our customers, but also turning some wrenches in their downtime as well. GM 7.6" REAR AXLE / 10 BOLT, AAM 800 Series 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. Similar to a C-clip eliminator, when an axle breaks on a flange style tube, the flange holds the broken axle shaft and the wheel continues to spin on the axle. GM 195mm REAR DRIVEMODULE - CAMARO, AAM 250mm 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. 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. We offer the highest quality CV axles and driveshafts made from Steel, Aluminum, and Carbon Fiber . After the splines are rolled, the axle is then heat-treated. How to eliminate unwanted to holes in your car's body, trunk, floor, or firewall with easy to use patch plugs from Speedway Motors. If the tires spin from heavy acceleration, this number decreases. Ductile strength is the metals ability to spring back from bending. Stock up on Stock Replacement Parts! An important step I like to take is to assemble the pinion and differential case without the crush sleeve or the new pinion nut. 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