Motor Mounts, 5.7 ECM, 5.7 wiring harness.. "Drive-by-wire"" harness and throttle pedal. But otherwise, the frame is the same for the 3.7 You may also need to change your front coils out on the suspension... the weight is much more than the V6, and the coils may be different because of that, but not completely sure. I'm doing a 4.7 to a 5.7 swap... so I've done a lot of research... and it's not as easy as dropping it in... wiring is going to be your biggest issue if you have a throttle cable instead of a "drive by wire" throttle.im in shreveport louisiana. i have a 2003 3.7 quad cab 2wd. can i drop this right into my truck and just change the motor mounts? i'd love too