Probably a Borg Warner four speed. The trans will physically bolt up to the bell housing so no issues there. You will have to look at the input snout. If its a course spline input snout, then your present clutch is fine. However, you have it all apart, now would be as good a time as any to refresh those parts. So, I would install a real oilite pilot bushing in the crank. Remove the pressure plate and clutch and look at the flywheel. If the flywheel is pretty worn or gouged, you might consider taking it to a machine shop and have it machined (make sure they have the ability to surface grind. If all they do is chuck it into a drum lathe, go someplace else.) The stock clutch could be 9 1/2 inches, heavy duty might be 11. If you have a 9 1/2 inch clutch measure the flywheel and you will note that it will take a 10 inch clutch. So if you want to upgrade, use a 10 inch clutch and pressure plate. Stock type flat fingered diaphragm pressure plates take the longer GM style throw out bearing, the more performance oriented cone shaped diaphragm pressure plates use the shorter GM throw out bearing.
Look at the front bearing retainer on the trans. It needs to be smooth, rust free and without gouging. If its not great, get a replacement because that is what the throw out bearing rides on. It needs to be clean and smooth for nice smooth engagement and disengagement.
Out put shaft, as was earlier noted, count the splines. You might have to swap yokes. Finally, you may have to shorten the drive shaft just a bit. You need 3/4 to an inch of clearance between the yoke and trans. Install the driveshaft in the trans until it bottoms out. Then pull it out to seat the rear u-joint. The shaft needs to pull out at least 3/4 of an inch.
Last edited by Dragsix; 02/06/2020 7:22 PM.
