Engine and Transmission Package – Cummins R2.8 with Tremec T56 6-speed Plus Adapter


Cummins 2.8 crate engine

Tremec T56 transmission with bellhousing

QDB GM SBC adapter kit



Looking for a complete drivetrain package that includes a NEW R2.8, A NEW Tremec T-56, and a Quick Draw adapter kit to make it all work? You’ve come to the right place!

Finally a short “Shorty” solution for mating the Cummins R2.8 to Tremec T56 transmissions is here.  Quick Draw Brand has made a kit that is easy to install, cost effective, and works.  This package includes a complete crate engine from Cummins, a Quick Draw GM manual adapter kit that works with the factory DOC filter, and a brand new Tremec T56 6 speed.  Our R2.8-GM T56 adapter is the shortest solution on the market at only 23″ total length from the transmission mating surface to the harmonic balancer pulley.  In addition, our adapter kit has two starter pockets that enable starter installation on the driver or passenger side of the vehicle.

Our Cummins R2.8 to GM manual package is the most complete kit you will find. You will receive the Cummins R2.8 Crate engine, brand new from Cummins Repower. In addition we include the Quick Draw GM stick shift adapter kit, which effectively turns the back of the Cummins R2.8 into a GM small block or LS.  Of course, the Quick Draw adapter works well with the provided brand new Tremec T56 6 speed transmission.  The GM manual adapter uses a factory Cummins flywheel, so no worries about welds coming apart.  Compare the price of this engine, transmission, ad adapter package vs. the price of just the Cummins R2.8 and  you will find that a complete package makes the whole process easier and cheaper.  This is not a complete installation kit (engine and transmission mounts are not included), but our package includes the most important parts to get your project bolted together.

Note that utilizing the passenger side starter pocket will allow the package to fit in a vehicle with frame rails 30 inches apart or wider;  frame rails under 30 inches apart will require relocating the the DOC and utilizing the drivers side starter pocket.

What’s Included in the Cummins R2.8 Kit (Cummins part number 5467046):

  • Cummins R2.8 complete engine assembly
  • Complete front-end accessory drive
  • Vacuum pump
  • Remote fuel/ water separator
  • Remote oil filter
  • Mass air flow sensor and housing
  • Engine wiring harness and ECM
  • Starter
  • Universal vehicle wiring harness
  • Throttle pedal
  • j1939 CAN dash display
  • Owner’s manual
  • Installation guide

In Addition, We Include the Cummins R2.8 – GM manual kit:

  • Brand new Tremec T56 6 speed transmission
  • QDB T56 bellhousing
  • clutch kit
  • QDB Flywheel housing adapter
  • Cummins flywheel predrilled for GM sbc clutch kit
  • Exhaust clocking adapter
  • Pilot bearing insert
  • Timing cover housing with gasket
  • new crank seal
  • Bolts


The Cummins R2.8 is allowed in Tier 1 compliant vehicles and older with cut-off dates around 1999 for light duty trucks and 1993 for light duty cars.  If unsure about whether or not your application qualifies, please reach out to us for verification. Note that all purchasers will be required to provide VIN number prior to shipment of parts as proof of compliance.


  • Gathering, machining, palletizing, and shipping could and normally will take upwards of 1 to 2 week once the order is placed and VIN number is validated, but if needing the crate sooner, expedited freight can be arranged at an additional cost to customer. In addition, all parts included in the kit will arrive in one crate with the transmission adapter plate and flywheel bolted to engine.  Transmission shipped on in same crate
  • Shipping is flat rate to the nearest freight terminal or business address.
  • We can arrange shipment directly to a residence, but there will be an additional fee to customer.
  • The states of California, Alaska, and Hawaii will have to pay additional freight regardless of delivery location.


  • Cummins offers a limited 2 year/2600 hour warranty on the engine crate.  Cummins INC. is the contact for all warranty issues.
  • Quick Draw Brand is a retailer for the Cummins R2.8 but is not a representative of Cummins nor does QDB have any affiliation with the manufacturing of Cummins engines..

More Information:

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

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

Weight1600 lbs
Dimensions52 × 45 × 41 in

You may also like…