Outer Limits 4x4 Board

I am wanting to replace my 4.5 petty with a 4.2 diesel. I was thinking of getting a write off 4.2 and just swapping everything over. If anyone has done this conversion before or knows what is involved any advice would be greatly appreciated.

I am about to swap my GQ TD42 out with a TB42 or TB45.

You can use the Manual you already have, just bolt it to the TD42 engine, so no gearbox changes are needed

Best idea is to go with an older TD42 that doesn't have any of the EGR crap or that on it, all mechanical pump and such, allows for a much easier setup, no ECU crap