Rear Axle Assemblies & Differentials - American Powertrain

Rear Axle Assemblies

For years our customers asked us to put a line of rear ends together to complement their choice of transmission but we never could find exactly what we were looking for. Then we found out that one of our best customers is a legend in the NASCAR world for building great diffs. We wanted to keep it simple, with model specific 12-bolt and Ford 9" assemblies with just a few options. Shop Rear Axle Assemblies Rear Axle Specs

Here's what we came up with!

Rear Axle Assembly Collage

American Powertrain Rear Axle Assemblies


Ratio Choice: 3.42/3.55/3.73

12 Bolt Rear Axle Assembly
Assembly Includes
  • NEW HD Nodular case
  • 30-Spline Moser high-alloy axles
  • Billet Housing Ends
  • 3/16” DOM Axle Tubes
  • Heavy duty bearings
  • Bolt-in axles with no C-clips
  • 11” GM Disc Brakes
  • Pre-plumbed brake lines
  • 1350 Pinion Yoke
  • Black Powder Coated Finish
  • Ratio Choice: 3.42/3.55/3.73
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Ford 9"

Ratio Choice: 3.25/3.50/3.70/3.89/4.11

Ford 9” Rear Axle Assembly
Assembly Includes
  • NEW Fabricated stamped steel chunk
  • NEW Nodular Iron case
  • Billet housing ends
  • 3/16” DOM Axle Tubes
  • 31-Spline high alloy axles
  • Motive Performance ring and pinion
  • Daytona pinion support
  • HD axle bearings
  • No adjustment axle pre-loading
  • 11” GM Spec Disc Brakes
  • Pre-plumbed brake lines
  • 1350 Pinion Yoke
  • Powder Coated Finish; Black Housing/Red Chunk
  • Choice of Ratio: 3.25/3.50/3.70/3.89/4.11
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Find Rear Axle Assembly for Your Vehicle

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  • Expert Enthusiasts American Powertrain's team is manned by experienced enthusiasts with years of installation experience.
  • 2 Year Warranty Industry leading 24-month warranty from date of installations with 2-year installation grace period.
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