I'm a helicopter mechanic by trade and know almost nothing about ground vehicles, so please bear with me on some of this stuff. I'm trying to learn as I go. My plan is to put a '96 4BT into my '78 Bronco. I bought the 4BT with an Eaton 5 speed but wanted to put an NV4500 on it instead (my brother said if I want to have an overdrive, I should go with the NV4500). I've ordered up a Dodge NV4500 4x4 4 bolt top with a large input of 1 3/8". I also have in my possession an Advanced Adapters NP205-29SL 29 spline to Ford NP205 adapter. I believe at this point the only thing I need is a bell-housing and clutch kit for the NV4500. Advanced Adapters doesn't sell the bell housings anymore and I don't know of any other providers. I also hope I didn't get the wrong input size on the NV. A little helpful guideance would be greatly appreciated. Thanks!