Here is a BEFORE photo of our Cummins 4BT Jeep Wrangler Conversion Project. We have lots of work to do. Still rebuilding the Cummins 4BT. We will modify the fenders, suspension, add a lift-kit, new custom wheels and tires, etc. Plan to use the stock Auto Transmission if possible. If not, we will add a NV4500 5-speed.