Getrag Differential Conversion



Please note we no longer offer the PPF adapter. The differential nose mount uses the same weld in design as the LFX and LSX conversions and is designed omit the PPF. The kit now includes a bolt in transmission mount. 

Based off our Getrag V8 conversion system we’ve designed for the stock transmission. A complete rear upgrade with 400hp rated axles, upgraded drive shaft with serviceable universal joints.

The Getrag carrier is widely used in many GM vehicles with a broad range of power outputs and applications. Its light weight cast aluminum design utilizes a clutch style limited slip differential an assortment of ratios. The size of the carrier offers exhaust clearance for  3” and optimizes ground clearance. Our unique design utilizes the factory hangers to support the carrier and custom front mount to eliminate twist and flex without relying on the subframe brace mounting points. This design allows the use of the factory and after market braces and subframe connector.

Carrier and axle combinations for LSx and MX5 drive lines axle combinations are built from all new parts, no remanufactured or machined original parts are used. The components in each kit are designed to work together under their stated application. Offered with a choice of axle and driveshaft options.   


Kit includes:

  • Drive shaft for Miata transmission to Getrag differential
  • Weld in front mount
  • Upgraded PnP axles rated at 400WHP
  • Bolt in transmission mount
  • Hardware for install


We utilize the Getrag in our road course and street cars. When sourcing the Getrag look for the 2006-2008. The later models have casting and seal updates. G80 series limited slip GM part numbers: 3:2325978162      3:4225873500      3:7325873497    3:90 – 25968531 . We offer new differentials for sale. Check our GM parts section.



This kit is for stock Miata transmission and PPF. Kits for LSx and LFX conversions can be found here – Conversion kits

Upgradable to work with LSx for LFX conversions.





Additional information

Weight70 lbs
Dimensions36 × 28 × 12 in


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