Friend is putting in a Cummins Turbo Diesel

[Yukon Jack]

Welcome to the board. I think my friend has gotten some more progress done, but he had a pretty bad back injury a while back and his focus has been getting his business back on track.

If you could use the donor truck's frame and all the running gear, I think you would be miles ahead. I think you could address the body mounts and shorten the frame alot simplier than making a new engine crossmember and doing all of the other fabrication that will be necessary.