Well..... this may possibly be the fastest answered question in the history of the internet! Foam ear plugs are the way to go (if you don't want to chase the threads with a tap).
The U-joints in the 78 (4 speed) shafts are an internal C clip, while the u-joints on my 73 (3 speed) shafts are an external clip. I guess I'll need to mix the needle bearing caps from 2 sets of u-joints on each end....i.e. run external clips on the flange side and internal clips on the shaft...
Any idea of the amount of shortening and lengthening? I have an extra set of '78 drive shafts, but they won't work with my '73 axles and t-case. What do you recommend?
I did not. In the write up I read about swapping a 4 speed onto a 3 speed transfer case there was no mention of driveshaft lengths. Will the rear need to be shortened, and the front lengthened?
Alright fellas....I don't want to hi-jack the thread, but I have a similar situation that I am trying to solve. I have a 1973 FJ40 (Build date is 9/72) I am running the original F engine, but swapped a 4 speed trans (bellhousing,clutch, flywheel...) in. Now I am actually using my '3 speed'...
My kit from amazon came with only 5 of the needed 16 bushings. A quick call to pro comp and the missing ones were on the way for free! They'll be here tomorrow! No questions about where I purchased it, or anything....just needed name address and how many I needed! Hopefully you haven't shipped...
I certainly should start a build thread, as I am doing a nut and bolt rotisserie restoration! Mine is a '73 with 80k miles. It spent its life in Arizona as a search and rescue vehicle for the state parks dept. It's 99% rust free...(only real rust is in the bottom corner of one of the rear half...