Adapter Kit for Cummins R2.8 Automatic GM LS Small Block

Adapter Kit for Cummins R2.8 Automatic GM LS Small Block


In stock (can be backordered)

Adapter kit that fits Cummins R2.8 automatic GM


In stock (can be backordered)



Here is the real solution to the Cummins R2.8 automatic GM transmission is here.  Quick Draw Brand has the kit that is easy to install, cost effective, and works.

You will receive a QDB GM auto kit fitting transmissions that came off the small block Chevy engines and the LS.  TH400, TH350, 700R4, 4L80, and 6L80e will bolt to this adapter.  This kit uses a factory Cummins flywheel /flexplate so no worries about welds coming apart.  Designed around installation in short wheelbased vehicles this kit is the shortest on the market and the flexplate bolts are easily accessible behind the removable dust cover.

This adapter is only 18lbs, almost half the weight of the factory flywheel housing.  It is also over an inch shorter than factory.  Looking to buy the Cummins Crate engine with adapter kit installed?  Here you go.

Parts included with the Cummins R2.8 Automatic GM kit:

  • QDB Flywheel housing adapter
  • Cummins Flexplate
  • Horizontal down pipe
  • Torque converter pilot hub
  • Low profile timing cover housing
  • Flex Plate stiffener
  • Dust Cover
  • Bolts
  • New rear main seal


  • Ships same day as order is placed

More Information:

We are available to answer any questions and always offers both Military discounts as well as check, cash, or wire discounts.

Videos of installation:

Here is a promotional video showing the toughness of the bell housings we produce. 

* Some photos showing engine and transmission combination have parts missing that will be included in the kit.

Additional information

Weight30 lbs
Dimensions25 × 25 × 12 in


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