[OrrieG]

The link in my signature will take you to a site that has technical information on AD and TF trucks. When you click the link on the page towards the bottom is a "go to year index" link, click on that, then find your year truck and start looking.

The 55-59 Factory Assembly Manual has very detailed dimensioned diagrams of the frame, brackets, mounting points, relationship of cab to wheel centerlines, etc.

I do not know if the same type of information is available for your donor truck but it would not be hard to measure wheel base and relationship to firewall, cab seating position, bed to rear wheel center line etc. You did not say if you are trying to put a short bed TF on a longer wheelbase donor. That will just make the calcs more complicated. You will also need to consider how to hang the radiator support, bumpers etc.

From what I have seen here and in the 4x4 forum it appears like the newer truck frames require the cab and bed to be mounted higher. They also have a wider track. While it is not the same there are plenty of S-10 and TF on 70's truck frames in the build sections. They would give you an ideal of what you are up against. You might also check out BBEEP's thread on his AD to Envoy conversion, it will give you insight into some of the electronic and other issues you might encounter.

Good luck, it is doable, but the devil is in the details and your fabriction skills.