good info to know, but to answer some it would be going behind a th350 short tail 77 model, and a 10 bolt rear end from an 84, 2wd short bed. But that's why I asked about a 4x4 long wheel base, long wheel base, ebing alot longer then I need, but 4x4 taking up alot of room for the transfer case, so maybe balance it out for me to be the right length. I wasn't sure if the output on the t-case was the same as a 2wd trans. or not.