I have an '85 5 speed w/22r motor 4x4 crawler. I want to change to 22re. I have lots of questions. 1. what is the newest year motor I can use without problems? Can I buy a 22re motor without a cpu and purchase toyota cpu from a different truck and get it to work? Do I need a different fuel tank than the stock tank on my 22r truck? Can I find a wiring harness and make it work? Anyone that has done this before please let me know the pitfalls. I would appreciate any help. thanks