1973-1987 GM K Series Cummins Conversion Kit | GF-GMK3-KIT

Complete Cummins Swap Kit for Square Body 4WD Chevy Trucks

Our 73–87 Chevy Cummins conversion kit is packed with essential components for a smooth Cummins diesel engine swap. It includes a transmission adapter and flexplate to mate a TH400, 700R4, or 4L80E transmission to a 1989-2002 6BT 12 or 24-valve Cummins engine. The bolt-in 2" drop engine crossmember (K-member) ensures proper engine placement and reinforces the chassis to handle the added torque of your square body Cummins swap.

• Fits Truck Model Years: 73-87, K Series 4WD.
• Fits Cummins Engine Years: 89-02.
• Fits Transmissions: Chevrolet TH400, 700R4, 4L80E.
  
• This kit is comprised of some of our most popular items for your 73-87 Chevy K Series Cummins conversion.
• The Kit includes:
• GF-C-S - Adapter and Flexplate-  The 5.9 Cummins to Chevy Adapter Plate and Flexplate Kit accommodates 2002 and earlier Cummins 6BT engines bolting to a Chevy automatic transmission such as a TH400, 700R4, 4L80E, or similar transmission.
• GF-GMDC - Cummins 6BT to Chevy Drop Crossmember-  This 2" drop crossmember allows proper engine placement and often eliminates the need for a lift kit when installing a Cummins 6BT into a 73-87 Chevy 4WD truck.
• GF-C-MM - Motor Mount- When installing a Cummins 6BT into your 1973-1987 Chevy pickup, this conversion motor mount allows for proper placement of the engine directly to the OEM frame mount isolators. When used in conjunction with a G Force GF-GMDC Drop Crossmember on 4WD models, you can retain OEM drivetrain height. Without our GF-GMDC Drop Crossmember a vehicle body lift is required.
• GF-BoltKitAdapter - Adapter Bolt Kit,  Premium grade bellhousing adapter bolt kits to make mounting the adapter plate to engine as simple as possible. Set of 9 bolts.
• GF-BoltKitFP - Flexplate Bolt Kit, -Flexplate bolts for mounting your Cummins 6BT to a GM Bellhousing. 12mm x 1.25. 25mm underhead length. Set of 8 bolts
• GF-BoltKitStarter - Starter Bolt Kit - Steel, zinc plated bolts constructed to strict engineering quality standards and serve as direct replacement bolts for replacing the Cummins 6BT starter. Set of 4 bolts with 3 washers

Note: This kit ships in two boxes.