RJE,
Pre-lube all the gears and bearings, particularly the rear output shaft bushing!
This is the bushing that the front u-joint yoke rides in.
You could use gear oil, but STP assembly lube is also good.
The throw-out bearing itself is a sealed, permanently lubed thing.
A light coating of grease on the front bearing support "snout", the splined part of the input shaft, and the pilot bearing surface will complete your pre-lube.
As far as I know, u-joints for torque-tube drive lines are not available through regular jobbers such as Neapco; they are from folks like Chevy-Duty or Jim Carter only. Sorry!
Don't forget to lube that rear bushing! I didn't, and "wiped it out" with in 50 miles!
Frank
