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I'm looking at buying an '81 3/4 ton chevy 4x4 to drop my 3.9 in for daily driving. I believe the truck has a th400 trans and np205 t-case. I read through a lot of old threads and I couldn't find what I was looking for so here is my question(s).
1. Since this trans is behind a gas engine what all needs to be changed so it will work with the 3.9?
2. If I use a th400/th475 from the breadvan instead of the trans already in the truck, will it bolt up to the t-case?
3. Suggestions for a different auto transmission?
Thanks,
Kyle
1. Since this trans is behind a gas engine what all needs to be changed so it will work with the 3.9?
2. If I use a th400/th475 from the breadvan instead of the trans already in the truck, will it bolt up to the t-case?
3. Suggestions for a different auto transmission?
Thanks,
Kyle