[D13]

Diesel 700 have different governer, TC, and may have slightly different TCC lock up wiring (because of no ECM). Basic trans is the same. Preferred solution is K case trans w/ diesel wiring and governer.

I'm absolutely not trying to discourage you to make this swap. I've got 2 spare motors to build for a future swap project (my 87 is getting pretty tired). Having lived thru my personal diesel issues last year, I'm trying to make sure you have what you need to be successful. It is NOT as easy as swapping SBC's, where any part is available in a nearby store or jyard. having all the parts to do the swap is key to a hassle free swap, and the best way is a complete donor. For example, the 700 uses a TPS on the IP and the TH400 uses a vacuum valve. The 700 uses a diesel only TV cable, bracket, and link rod, and the last 2 are available only in a jyard. it takes dual batteries and the cables are unique. The starter, WP, and PS are unique. Got a vacuum pump? Motor mounts (rubbers) are different. etc.

On the other side I get 22MPG in my 87 6.2 half ton. Pretty hard to beat.