Re: Installing a NP435 in a jeep, is this right
I'm using a bellhousing from a mid 80's F150/250, and using the 11 " flywheel and fork from the same truck. I don't know if that will bolt to the 258 tho (this is being bolted to a 302). The input shaft for the NP435 is the same as the T4/5, but the output shaft is different. Depending on what application the NP435 came out of (4wd divorced, 4wd, or 2wd) the output shaft will be longer or shorter, but the spline count is different too. The Novak adapter comes with a new output shaft, and fits like a glove. You can probably just order the output shaft from them too if you don't want the whole adapter.
I will compare the AMC fork/throw out bearing to the Ford fork/throw out bearing tonight and post back differences.