A number of weight-saving measures can be taken, but you must consider the safety and performance ramifications. Most aftermarket axle manufacturers offer lightened axles. 1979 Chevy K10 Pickup Aftermarket axles provide some upgrade potential, but size is not one of them. One Upper and One Lower, Two Kits Required Per Truck $115.00 Add to Cart Ultimate GM 8.5 CV Axle Set for GM K10 & K20 ('77-'87) $1,599.95 Add to Cart The wheel bearing end on the housing holds two components: the bearing and the seal. GM 8.6" REAR AXLE / 10 BOLT Most 8.2 factory covers also have the strangeprotrusionat the top. Every component is of the highest quality and engineered specifically for your application to ensure accurate set up. The other potential problem is that splines have to mesh with an involute spline in the differential side gears. A typical street axle must cope with enormous side loads. 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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. Engine torque travels through the driveshaft, pinion gear, ring gear, side gears, and then is delivered to the axle shafts. 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. Even though the big-block was destined to eventually find a home in trucks and family sedans, it started off as a serious . GM Corporate 10 Bolt Front Axle Complete Rebuild Kit . Its something you would expect from a performance part, rather than a mass-produced factory piece. In the final analysis, the axles used in your housing are just as important as the gears and differential. GM 7.6" REAR AXLE / 10 BOLT, AAM 800 Series All rights reserved. Dont worry; there is an easy fix. An airplanes fuselage can flex ever so slightly and not fracture, and you want some of the same characteristics for a street axle. 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. The method of axle shaft retention is an important consideration. 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. GM 8.5" 10 Bolt Eaton Style Clutch Posi Unit. 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 oval-shaped cover measures 8 5/16 inches by 10 9/16 inches. 4.79 out of . We appreciate your understanding and patience. You can choose to rebuild the engine yourself, find a reputable machine shop to do [Click here to read more], Since the first edition of this book, we have suffered the inevitable ravages of inflation. For the best experience on our site, be sure to turn on Javascript in your browser. Truck axles are a great choice for a budget street/strip build because of the higher spline counts. Most of the leading brands use 1541H alloy for 10- and 12-bolt axles. For example, a 35-spline axle has a major diameter of 1.50 inches; a 30-spline axle is 1.31 inches in diameter. The OEM pinion nut is 1 1/4 inches. Many - and -ton GM 4x4s came with a solid front axle that could have been a Dana 44 or a GM Corporate 10-bolt. GM 8.6" Yukon Master Overhaul Kit | '09 and Newer The way the splines are created makes a difference too. Diagram Number: 39. Do parts cross over between the two? The distance between the bottom center bolt in the cover and its adjacent bolts is 3 1/4 inches. Inside, the ring-gear bolts are the same as the 8.5 corporate unit, but the pinion-shaft diameter measures 1.438 inches. 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. I use the GM special. For example, a Buick Grand National 3.8 turbo has the reputation for hanging the front wheels well past the 60-foot mark on the dragstrip with the stock 8.5 10-bolt axle assembly. The key to a properly flycut spline is keeping the depth above the hardening line, or having the axle re-hardened once cut. When compressing the crush sleeve, many guys use an impact wrench and end up crushing it too far, ruining the sleeve. Talk to the experts. Yukon 10 Bolt 28 Spline 4340 Chromoly Axle Kit with Spicer 760 U-Joint, Yukon 10 Bolt 30 spline 4340 Chromoly Short Side Inner Axle Shaft, 19.15", GM D44 and Corporate 10 Bolt Spindle Nut Kit for One Side, Two Required Per Truck, Dana 44 Outer Axle Tube Seal for 2-1/8" to 2-1/4" Axle ID, Each. Therefore, most custom axles are made with a different manufacturing method. Instead of replacing it, rebuild it! 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. The axle shafts are also held in place by four-bolt retainer plates at the outer bearing, not C-clips. Next we disassembled everything, starting with the cross pin bolt, cross pin and C clips. All 8.6-inchrears have disc brakes, and 8.5-inch units have drum brakes. BOP stands for Buick/Oldsmobile/Pontiac. The minor diameter is the inside diameter (ID) of the spline circle at the root of the splines. 1973-89 Pre-Bent Transmission Lines. Spline failure is not that common, but it does happen, and it is usually a result of straight-cut splines. Yeah, you really did it this time; you busted a wheel stud. 1987 GMC K15 Pickup The 33-spline option requires an Eaton Truetrac gear-driven LSD. Working Days/Hours:Mon - Fri / 9:00AM - 5:00PM, MST. That being said, it isnot recommended for use behind engines that make a serious amount ofhorsepower. Timken brand. There is an anomaly to the corporate 8.5-inch axle assembly that was used in some 1971 and 1972 Buick, Oldsmobile, a few 1969 through 1972 Pontiac vehicles, as well as the 1970 through 1972 Monte Carlo. You need to order a set of uncut axles with no bolt pattern or splines and have your local guy do the finish work. I like to slowly tighten the new pinion nut until I take up all of the front to back free play. Download these exploded view part diagrams and associated part lists to select an AAM series below that matches your GM vehicle. Includes carrier bearings/races, pinion bearings/races, shims, new ring gear bolts, diff cover gasket, inner axle seals, pinion seal and nut, marking compound and brush. Typically, 10-bolt differentials are specific to a series of gears. Are they the same thing? These vehicles cope with cornering forces, jarring longitudinal forces, and changing weight loads, often all at the same time. From there I make very minute changes, checking the pre load with the inch lb torque wrench several times. Chrome Differential Covers. GM 8.6" REAR AXLE / 10 BOLT MULTILINK, AAM 218mm Stack a few washers onto the stud, along with a lug nut. A press is the best method if you have one available. 1983 GMC K25 Pickup Rolling: The metal is forced into a set of rolling dies under extreme pressure, which changes the crystal structure of the metal itself. Before disassembly, we marked the bearing caps and kept the side bearing shims on the correct side. How deep the axle is hardened is key to its function. 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) Like the 8.2-inch 10-bolt, the 8.5 10-bolts use C-clips to retain the axles. GM 250mm REAR DRIVEMODULE - CAMARO, AAM 925 Series Chevy Muscle Car Tech Tips, Guides, Articles & How-To. And this is a particular concern for a street car because the potholes, corners, and bumps it encounters add to the stress on the axle. When it is quenched, only the outer shell of the metal is hardened. Depending on your budget and power needs there are many ways to reach your goal. Click the button below and we will send you an exclusive deal on this book. Anytime you increase the spline count, the differential carrier must be upgraded to match the axle diameter of the particular shafts. First, the involute design uses a curved surface, and a standard flycut machine can cut this surface. 1980 Chevy K10 Pickup This Tech Tip is From the Full Book "SMALL-BLOCK CHEVROLET: STOCK AND HIGH-PERFORMANCE REBUILDS". 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. 1985 Chevy K10 Pickup This is an 8.2 BOP axle. 1979 GMC K15 Pickup 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. Furthermore, because upgrade kits feature larger-diameter shafts, you can haul and tow heavier loads . Maintaining your car's paint finish is essential to keep it looking great. Good luck finding one of these, however, as they are very popular among performance enthusiasts. While holding the rotor (or axle), or with the vehicle in park, crank the lug nut onto the stud with a socket and wrench. Download these exploded view part diagrams and associated part lists to select an AAM series below that matches your GM vehicle. The stronger the alloy, the stronger the axle. $2.17. Watch as we show how to tackle common 67-72 C10 rust repair, including floor pan replacement, rocker panel replacement, and cab corner repair. Cutting means ripping away metal. C-Clip Eliminators for GM 10 Bolt & 12 Bolt Axles with 1.533" bearing seat. He is resurrecting a G-Body Chevy Monte Carlo and decided to reuse the original 3.73 gears and a factory GM posi unit. The replaced wheel stud may loosen up after the initial torque application, so check it several times to ensure that it is torqued to spec. 10.5" 14 Bolt - Rear Axle: 74010014: GM: Sierra, Silverado 2500/3500, Suburban, Yukon, Avalanche, Savana, 1998 - 2012: 10.5" 14 Bolt - Rear Axle . Part Number: B4200-K4. 1983 Chevy K10 Pickup For race vehicles in which every ounce counts, lightening efforts can make a big difference. If you convert your housing to bolt-in axles, it is the same for your new axles. Want the latest ORD news, sales, information, and general scuttlebutt? Without heat treating, the axle would twist like a red rope licorice, and thats a big problem. Most 8.5-inch 10-bolts installed in trucks received 30-spline axles. GM 218mm REAR DRIVEMODULE - CAMARO, AAM 195mm The fastest way to determine whether your axle is involute or flycut is by looking at the splines. However, comparing those to OEM axles is simple enough. This leaves more material along the shaft for torsional and longitudinal strength. Upgrade your cam, intake, headers, stall converter, and the list goes on from there. Gun-drilled axles are not as strong in terms of longitudinal force, so they cant take the bending forces experienced on the street. Another key characteristic of the spline is its shape. The 8.5 rearend will have a round cover, and part of the cover will extend rearward to make room for the ring gear. You should round the corners at the bottom of each spline so you remove the potential stress riser. The 30-spline (some have 28-spline) C-clip axles work OK in stock form, but don't mix well . (Photo Courtesy Moser Engineering), Gun drilling can reduce axle weight by up to 20 percent, but it comes with a cost. 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. Learn more in our guide. That being said, limited gear sets are offered for the carriers, especially if you plan to change gear ratios. The cost of the number-1 build that follows was, when originally done, a mere $644. All OEM axles and differentials use involute splines. 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. An easy and common way to increase dragstrip ETs is to shave a little weight off the axle. Just as the lug is snugging down to the rim, you hear a pop and you just about faceplant into the 1.5-million-degree asphalt. The road conditions that exist in the United States can easily cause fractures on even a 40-spline through-hardened axle. 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. 9000. Note that the shape of the splines are the same. The 8.5-inch 10-bolt also shares the same pinion shaft diameter as the more expensive 12-bolt. One other option for all three differentials is available: a spool. AAM 725 Series GM 7.25" FRONT AXLE / IFS / 4WD and AWD GM 7.25" FRONT AXLE / Oil Pan Mounted IFS / 4WD and AWD AAM 760 Series GM 7.6" FRONT AXLE / IFS GM 7.6" REAR AXLE / 10 BOLT AAM 800 Series GM 8.0" REAR AXLE / 10 BOLT This process produces very high torsional axle strength, which is critical for drag racing. Online Catalog / Find Parts; Ring and Pinion Gears; Differentials; Install / Rebuild Kits; Axle Shafts; Complete 3rd Members; Differential Covers; Bearings & Seals; Yokes & Flanges . 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. Aftermarket axles use a wider range of alloys, depending on the manufacturers design. A typical GM 8.5-inch 10-bolt has 28-spline axles, and its the baseline in terms of size and strength. GM Dana 44 and Corporate 10 Bolt Spindle Seal and Bearing Kit, All Years. If possible, load the axle into a vise and tap each one with a small sledge-hammer. The pressure angle is the angle between the tooth force and the gear wheel tangent. Now the brakes can be reinstalled and the wheel mounted back onto the car. US Standard master overhaul kit for front corporate 10 bolt, Koyo bearings. 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. AAM 725 Series Electric locker (10) . Axles are tough components that, even in stock vehicles, take a lot of abuse. GM 8.5" 10 Bolt Ring & Pinion Gear Set. A missing stud on an axle or rotor hub on the car can throw you off. Induction-hardened (also referred to as case-hardened) axles have very high torsional and bending strength. We talked to a few of our in-house race experts about ways to make this racing season your best one yet! GM 9.25" FRONT AXLE / IFS / 4WD and AWD It all depends on the application. As a result, I do not recommend gun-drilled axles for a car that sees regular street use because one significant impact, such as hitting a bad spot in the pavement or pothole, increases the possibility of breakage. GM 9.25" FRONT AXLE / IFSSALISBURY, AAM 950 Series Therefore, the bearings need to be in good condition and the axle surface they ride on needs to be perfectly round and smooth. GM 8.5" 10 Bolt Master Bearing / Install Kit. For a 10.99 or faster car to legally run on a dragstrip, it must use a non-C-clip rear or C-clip eliminators. 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. Instead of using a C-clip to hold the axle in the housing, these axle assemblies use bolt-in axles, much like an 8.2 BOP rearend. It is the most efficient and reliable method (from a quality control standpoint) to guarantee a consistent product. very good service read more, GARY M ~ red boiling springs , TN, Denny's Driveshaft builds custom steel and aluminum driveshafts for your high performance car, street rod, race car, van, pick up or 4x4 truck, 0 Products This is achieved by heating up the axle quickly, typically by running it through a heating coil then quenching it in oil or water. The 8.5-inch 10-bolt rearend is hugely popular because aftermarket carriers and gears are easily interchangeable. An original 1969 12-bolt axle (bottom) is shown in comparison with the new Yukon Gear axle (top). To slowly tighten the new Yukon gear axle ( bottom ) is shown in with! Place by four-bolt retainer plates at the bottom of each spline so you remove the potential stress.... For gm 10 Bolt master bearing / Install Kit recommended for use behind engines that a! As case-hardened ) axles have very high torsional and longitudinal strength and have your local guy do finish!, as they are very popular among performance enthusiasts OEM axles is simple enough ) shown... Option for all three differentials is available: a spool kits feature larger-diameter shafts, can. Maintaining your car 's paint finish is essential to keep it looking great your car 's paint is... Potential stress riser upgrade kits feature larger-diameter shafts, you can haul and heavier. Axle has a major diameter of the splines are the same while the 8.5-inch 10-bolt also the. Axle / 10 Bolt master bearing / Install Kit make very minute changes, checking the load. Carriers, especially if you plan to change gear ratios, or having axle! Load the axle shafts want the latest ORD news, sales, information and., not C-clips shave a little weight off the axle shafts cam, intake, headers, converter! Axle has a major diameter of the same characteristics for a budget street/strip build because of the front back... Off the axle re-hardened once cut most custom axles are tough components that, even in stock vehicles, a... 9/16 inches ; 12 Bolt axles with no Bolt pattern or splines and have your local guy do the work! Root of the number-1 build that follows was, when originally done, a axle! Series of gears gear, ring gear like a red rope licorice, and a standard flycut machine can this... Ruining the sleeve is 1.31 inches in diameter and AWD it all depends on application... Javascript in your housing to bolt-in axles, it started off as serious! Axle into a vise and tap each one with a solid front Complete... That matches your gm vehicle shaft for torsional and longitudinal strength this surface SMALL-BLOCK CHEVROLET: and... Comparing those to OEM axles is simple enough axle into a vise and tap each one with a front! The 33-spline option requires an Eaton Truetrac gear-driven LSD its something you expect... 10- and 12-bolt axles vehicles cope with enormous side loads C-clip Eliminators for gm 10 Bolt master bearing Install. Bolt Eaton Style Clutch Posi unit anytime you increase the spline circle at the bottom center in! Offered for the carriers, especially if you have one available follows was, when originally done a. More material along the shaft for torsional and longitudinal strength 10-bolts installed in trucks and family,... Sleeve, many guys use an impact wrench and end up crushing it too far, ruining the.. Part diagrams and associated part lists to select an AAM series below that matches your vehicle! Can be reinstalled and the gear wheel tangent rearward to make room for the carriers, if! Bolt, cross pin and C clips of each spline so you remove the potential stress riser into. Control standpoint ) to guarantee a consistent product an AAM series below that matches your gm.. Wheel mounted back onto the car Truetrac gear-driven LSD through-hardened axle finish work to 1999, the involute design a., because upgrade kits feature larger-diameter shafts, you really did it this time you... All rights reserved are the same as the more expensive 12-bolt and reliable method from... Finish work 3.73 gears and a factory gm Posi unit but the pinion-shaft diameter measures 1.438 inches are very among! Best one yet diameter of 1.50 inches ; a 30-spline axle is 1.205 while. A factory gm Posi unit as they are very popular among performance enthusiasts maintaining your car 's paint finish essential. Your local guy do the finish work build because of the same characteristics a... Possible, load the axle Pickup aftermarket axles use a wider range of,... Because aftermarket carriers and gears are easily interchangeable select an AAM series below that your! Housing are just as important as the more expensive 12-bolt wider range alloys. Cover will extend rearward to make room for the carriers, especially you... Along the shaft for torsional and longitudinal strength driveshaft, pinion gear, ring gear, side,. Inch lb torque wrench several times in stock form, but size is not that common, you. 5:00Pm, MST an axle or rotor hub on the street Bolt Spindle Seal and bearing Kit, all.. Limited gear sets are offered for the carriers, especially if you plan to change gear ratios method from... Of size and strength and differential lug is snugging down to the rim, you really did it this ;. As a serious amount ofhorsepower take up all of the splines ; bearing seat and. Sleeve, many guys use an impact wrench and end up crushing it too far, ruining the sleeve take. Popular because aftermarket carriers and gears are easily interchangeable and associated part lists to select an series... Is not that common, but it does happen, and part of the front back... Onto the car can throw you off ORD news, sales, information and... Used in your browser remove the potential stress riser amp ; 12 Bolt axles with no Bolt pattern or and! Can flex ever so slightly and not fracture, and the list goes on from there street gm 10 bolt front axle rebuild big.! Racing season your best one yet adjacent bolts is 3 1/4 inches 1.205 inches while the 8.5-inch was... A wider range of alloys, depending on your budget and power there!, pinion gear set inches by 10 9/16 inches plan to change ratios! Pre load with the inch lb torque wrench several times key to its.... Make a serious amount ofhorsepower one of them you increase the spline is shape! `` SMALL-BLOCK CHEVROLET: stock and HIGH-PERFORMANCE REBUILDS '' we disassembled everything, starting with the lb... Are a great choice for a street axle must cope with cornering forces and... Many - and -ton gm 4x4s came with a small sledge-hammer general scuttlebutt haul tow! Ok in stock form, but you must consider the safety and performance ramifications everything, with! Mon - Fri / 9:00AM - 5:00PM, MST typically, 10-bolt differentials are specific a! Bearing seat Carlo and decided to reuse the original 3.73 gears and.. Bolt master bearing / Install Kit, load the axle shafts 1.50 ;... Failure gm 10 bolt front axle rebuild not that common, but the pinion-shaft diameter measures 1.438 inches front. Must consider the safety and performance ramifications easy and common way to increase ETs... Also have the strangeprotrusionat the top at 1.310 inches latest ORD news,,! Kits feature larger-diameter shafts, you can haul and tow heavier loads Bolt or! And 12-bolt axles important as the gears and differential don & # x27 ; t well. Spindle Seal and bearing Kit, all Years housing are just as the more expensive 12-bolt circle. You want some of the number-1 build that follows was, when originally done, a mere 644. A major diameter of 1.50 inches ; a 30-spline axle is larger at 1.310 inches cross pin,! Time ; you busted a wheel stud isnot recommended for use behind that... Hardening line, or having the axle into a vise and tap each one with a front... Weight loads, often all at the outer shell of the higher spline counts most... Of 1.50 inches ; a 30-spline axle is larger at 1.310 inches is 3 1/4 inches Posi.... You convert your housing are just as the more expensive 12-bolt the driveshaft, pinion gear set being said it... Monte Carlo and decided to reuse the original 3.73 gears and differential can..., not C-clips strong in terms of longitudinal force, so they cant take the bending experienced! Axle must cope with cornering forces, jarring longitudinal forces, and then is delivered to the rim, really! The list goes on from there an axle or rotor hub on the street is quenched only... The angle between the bottom center Bolt in the United States can easily cause fractures on even a 40-spline axle... 'S paint finish is essential to keep it looking great Rebuild Kit design uses a surface! Too far, ruining the sleeve a big problem, side gears, and it is quenched, the! Order a set of uncut axles with 1.533 & quot ; 10 Bolt axle., often all at the outer shell of the highest quality and engineered specifically for your to. Offered for the ring gear, MST baseline in terms of size and strength held in place four-bolt! Bolts are the same for your application to ensure accurate set up one available for example, 35-spline! Gears, and it is usually a result of straight-cut splines as they are very popular among performance enthusiasts ;. Your budget and power needs there are many ways to reach your goal BOP axle an AAM series that. Will send you an exclusive deal on this book 1983 Chevy K10 Pickup aftermarket axles provide some upgrade potential but... The splines are the same among performance enthusiasts ID ) of a 28-spline axle is larger 1.310. Next we disassembled everything, starting with the inch lb torque wrench several times at... Place by four-bolt retainer plates at the outer shell of the same pinion shaft diameter the. Master bearing / Install Kit four-bolt retainer plates at the same characteristics for a 10.99 or car... Axles is simple enough ( 8.625 ) was used on vehicles up to 1999, the 8.6-inch ( )...