Adapter kit – Cummins R2.8 to 4R100 Automatic Ford

Adapter kit – Cummins R2.8 to 4R100 Automatic Ford


Adapter Kit for Cummins R2.8 to Ford 4R100 automatic 4 speed transmission.

SKU: CUM2.84R100KTCT-1 Category:


If you are looking to fit the Cummins R2.8 in your first Gen Bronco or short wheel base build, Quick Draw has the solution with the Cummins R2.8 Adapter Kit for the 4R100 Ford automatic.  This adapter kit replaces the factory Cummins R2.8 flywheel housing and weighs in at 18 lbs, half the weight of the original Cummins part.  The adapter plate for the Cummins R2.8 to the Ford 4R100 Automatic is only 1.75″ thick, making it over an inch shorter than factory.  This kit utilizes a modified Ford Flexplate and allows for easy access to the torque converter bolts from the access hole covered by a dust cover.  Installation is  a simple, bolt-in process.  Everything required is included, right down to the starter and the exhaust flange that you’ll need to clear the transmission case. This kit works with the Ford Modular style 4R100 transmission.

What’s included in the Adapter kit for the Cummins R2.8 4R100 automatic platform:

  • Quick Draw Brand adapter plate
  • Rear Crank seal
  • Starter
  • Starter alignment plate
  • Dust Cover
  • Alignment dowels for plate and transmission
  • Horizontal exhaust flange
  • Flexplate spacer
  • Modified Ford Flexplate
  • Flexplate stiffener


  • Normally ships same day.

Additional Info:

Feel free call, text, or email with any questions.  Cash and check discounts are available and as always military discounts are available.

Universal R2.8 motor Mounts are available here.

Installation video can be found here.

Additional information

Weight40 lbs
Dimensions22 × 22 × 8 in