Finding the right truck or build it

[ChevyKev]

How about converting 2WD to 4WD?

I found a clean 1 ton with the 454 I want. Would I just have to add the front axle, transfer case, and drivelines? I know I'd have to cut a hole for the transfer case in the cab. How about the tranny? Can a 2WD auto tranny be adapted to the transfer case or would I have to get a new tranny also?

Springs aren't an issue since I'll be getting new springs with a lift kit.

What year are we talking here? Your 2wd trans has a different output shaft than a 4wd trans, so a t-case won't bolt up unless you change the output shaft.

Kevin's the expert, but the front crossmember might be the tricky part. It's integrated into the suspension of the 2wd trucks. I think you have to build a new crossmember under the engine if you convert it to 4wd.

As for the transmission, you could use a divorced transfer case. There were divorced 205s, and I think Kevin has one.

The basic frames were essentially the same, with different bracketry for 2wd, 4wd. Kyle may be correct in the crossmember, but it may be able to stay if you will be using front leaf springs and a solid axle. You'd just need to find a donor truck (and I happen to know where a couple might be sitting!) for the spring hangers and bracketry. If the crossmember would need changed I have that, too.

You'll need a different trans or a divorced case - and yes I have a divorced 205.
My question is, what tranny? I'd hope they put the 400 behind a 454. If so, go with a divorced t-case. You'll need a longer front driveshaft but the angle will be better. If it is a 350 trans I'd suggest finding a married 400/205 to put in it. You'll need a t-case mount/cradle for the divorced t-case. The married units you may need a different crossmember but may not. May only need to re-drill frame holes for your current set-up.

I could estimate more what needs done if I could look at it. Let me know.