Alloy USA manufactures heavy-duty axle shafts and other driveline components for racing and off-road use. Alloy USA axle shafts and Precision Gear ring and pinions have been propelling race cars, muscle cars, trucks and 4WD vehicles down highways, back roads, and over the roughest terrain for many years. With their continual quest to provide their customers with the best parts available, it was only natural for Omix-Ada to acquire these companies.

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    • (0 reviews)
      # sp1298
      Axle Shafts and Components by Alloy USA®. Upgrade your axle shafts for less than the cost of original replacements. Alloy USA performance axles shafts are made from heavy-duty steel that is heat treated and induction hardened to be...
      $4.99 - $2,465.99
    • (0 reviews)
      # sp4164
      HD Differential Cover by Alloy USA®. Don't be left stranded out on the trail! Protect your valuable differential with a heavy-duty cover. These covers are made of 3/8" cast steel or 5/16" stamped steel, with extra reinforcement in...
      $95.99 - $129.99
    • (0 reviews)
      # sp1296
      Slotted And Cross Drilled Rotors by Alloy USA®. These slotted and cross drilled rotors will shed heat, water and brake dust to ensure your brake pads maintain contact for optimal stopping power. They're sold in pairs and available...
      $62.99 - $157.99
    • (0 reviews)
      # sp4166
      Ball Joint Kit by Alloy USA®. These adapters will allow you to use wheels with a 5 x 5.5" bolt pattern, and space the wheels 1.25" away from the body to allow the fitment of wider tires. They're hub-centric to maintain wheel...
      $181.99
    • (1 review)
      # sp24505
      Performance Transmission & Drivetrain Differentials by Alloy USA®. The Alloy USA differential perma-lock kit is a permanent replacement for the failure prone OE vacuum disconnect system. The kit permanently engages the central axle...
      $48.99
    • (0 reviews)
      # mpn1796824
      Rear Axle Shaft (17134) by Alloy USA®. Size: 28.5". Spline: 26. Finish: Black Oxide. Upgrade your axle shafts for less than the cost of original replacements. These Alloy USA performance axles shafts are made from heavy-duty steel...
      $117.99
    • (0 reviews)
      # mpn1794359
      Axle Assembly (10601) by Alloy USA®. Material: 4340 Chromoly. Size: 39". Spline: 35. Upgrade your axle shafts for less than the cost of original replacements. These Alloy USA performance axles shafts are made from heavy-duty steel...
      $327.99
    • (0 reviews)
      # mpn1794358
      Axle Assembly (10600) by Alloy USA®. Material: 4340 Chromoly. Size: 22". Spline: 35. Upgrade your axle shafts for less than the cost of original replacements. These Alloy USA performance axles shafts are made from heavy-duty steel...
      $237.99
    • (0 reviews)
      # mpn1796810
      Rear Outer Stub Axle by Alloy USA®. Size: 9.72". Spline: 19. Upgrade your axle shafts for less than the cost of original replacements. These Alloy USA performance axles shafts are made from heavy-duty steel that is heat treated and...
      $155.99
    • (0 reviews)
      # mpn1794861
      Passenger side Axle Assembly (10662) by Alloy USA®. Size: 15.97". Spline: 35. Upgrade your axle shafts for less than the cost of original replacements. These Alloy USA performance axles shafts are made from heavy-duty steel that is...
      $227.99
    • (0 reviews)
      # mpn1795293
      Rear Driver side Axle Shaft (21113C) by Alloy USA®. Grande 44. Size: 29.5". Spline: 33. Upgrade your axle shafts for less than the cost of original replacements. These Alloy USA performance axles shafts are made from heavy-duty...
      $182.99
    • (0 reviews)
      # mpn1794387
      Rear Axle Shaft (17109) by Alloy USA®. Material: Chromoly. Size: 31 5/16". Spline: 30. Upgrade your axle shafts for less than the cost of original replacements. These Alloy USA performance axles shafts are made from heavy-duty...
      $117.99
    • (0 reviews)
      # mpn1794860
      Inner Driver side Axle Assembly (10661) by Alloy USA®. Size: 35.1". Spline: 35. Upgrade your axle shafts for less than the cost of original replacements. These Alloy USA performance axles shafts are made from heavy-duty steel that...
      $303.99
    • (0 reviews)
      # mpn1794379
      Front Axle Shaft Assembly (12170) by Alloy USA®. Spline: 30. Upgrade your axle shafts for less than the cost of original replacements. These Alloy USA performance axles shafts are made from heavy-duty steel that is heat treated and...
      $756.99
    • (0 reviews)
      # mpn1794900
      Rear Axle Shaft (17137) by Alloy USA®. Size: 33". Spline: 30. Upgrade your axle shafts for less than the cost of original replacements. These Alloy USA performance axles shafts are made from heavy-duty steel that is heat treated...
      $117.99
    • (0 reviews)
      # mpn1794367
      Rear Axle Shaft Seal (11109) by Alloy USA®. Grande. If the inner seal wears, you can substitute this replacement seal by removing the snapring from the aluminum axle tube seal housing.
      $4.99
    • (0 reviews)
      # mpn1794856
      Outer Axle Assembly (10650) by Alloy USA®. Material: 4340 Chromoly. Size: 12". Spline: 35. Upgrade your axle shafts for less than the cost of original replacements. These Alloy USA performance axles shafts are made from heavy-duty...
      $182.99
    • (0 reviews)
      # mpn1794898
      Rear Axle Shaft (17110) by Alloy USA®. Size: 31,8125". Spline: 30. Upgrade your axle shafts for less than the cost of original replacements. These Alloy USA performance axles shafts are made from heavy-duty steel that is heat...
      $117.99
    • (0 reviews)
      # mpn1794388
      Rear Axle Shaft (17112) by Alloy USA®. Size: 31.38". Spline: 28. Upgrade your axle shafts for less than the cost of original replacements. These Alloy USA performance axles shafts are made from heavy-duty steel that is heat treated...
      $117.99
    • (0 reviews)
      # mpn1794897
      Rear Axle Shaft (17106) by Alloy USA®. Lug: 6. Size: 33.13". Spline: 33. Upgrade your axle shafts for less than the cost of original replacements. These Alloy USA performance axles shafts are made from heavy-duty steel that is heat...
      $117.99
    • (0 reviews)
      # mpn1796456
      Axle Shaft Bearing Spacer by Alloy USA®. Horsepower is useless if you can't get it to the ground, so you need a stout drivetrain to go along with your high-powered engine. Even a small part, if poor quality, can leave you stranded...
      $18.99




    When horsepower under the hood tries to make its way to monster tires, the stock axle shafts can bend, twist and break. The Alloy USA solution is high tensile strength 4340 Chromoly that is heat treated, tempered, and induction hardened to produce axles that are up to 40% stronger than stock. The latest cold spline rolling technology is used to produce splines that are stronger than traditional cut splines, then the shafts are inspected for cracks.

    Alloy USA Videos Alloy USA - About Us

    Alloy USA also specializes in making products that correct common driveline weak spots. The Manual Locking Hub Conversion Kit will reduce wear and tear on your driveline and give you better fuel mileage, by allowing you to lock the hubs when you need 4WD and unlock them so they can freewheel when you don’t. The Differential Cable Lock Kit converts the failure prone original equipment vacuum disconnect system to reliable cable actuation.

    Featured Videos

    Axle shaft and ARB locker conversion kits give you stronger axles and 100% traction to the wheels. Limited slip differentials may not limit enough slippage to give you the traction you want, and automatic locking differentials are noisy and may lock unnecessarily. An ARB differential only locks when you need it, but then provides 100% traction to make sure you don’t get stuck. Alloy USA takes pride in developing these and other engineering solutions.

    A combination of monstrous horsepower under your hood and high-traction tires on the ground can quickly reveal any weakness in the drivetrain. To be sure that the drivetrain parts will undoubtedly withstand the rigors of racing and hard driving, the engineers at Alloy USA develop and test every product until it performs just right. When it comes to the design, it is refined through further track testing and then turned into the final product.

    Alloy USA Reviews

    Average rating:  5  4.8 - 1 review
    Read All Alloy USA Reviews
    4.8 of 5
    Looks Cool...
    Was amazed by perfect fitment of tail lights. They were just like on the website. Looks good on my car, too. Installation was rather easy. I like CARiD and will definitely come back to buy more.
    BPosted by Benjamin (Ocean Shores, WA) /
    2008 Jeep Wrangler
    Was this review helpful for you? Yes1  person found this review helpful.
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