Shrinkdude

I just converted to an 8" rear from the stock 6cyl one.
My main question has to do with the front yoke that slides into the end of the 3 speed toploader I have in it. It is the 3.03 type but it has a 25 spline output shaft. Is there more modern cars that would have the 25 splines with the type of u-joint used on the 8" rear?
I want to go to some junkyards to find one the right length, but don't want to pull every driveshaft in the cars to count the splines on the yoke.

JMD

You could have a new end welded on the shaft you have to hook to your new rear end. It will cost you about $100.00 at a driveshaft shop, but it will work for you.

We did this on the the 66 for a period of time after we installed the 9", but before we swapped the I-6 / 3 speed out.

Shrinkdude

Yeah I was hoping to an easy cheap junkyard find since I a T5 ready to go. I need to get the adapter plate and crossmember to do that swap and didn't want to go to the driveshaft place twice.
Thanks

iamdiffrnt

If the length is good, see about a hybrid u-joint. They are made for this purpose, get the dimentions for the two u-joints and find a hybrid with the dimentions that match.