driveshaft?

Be sure to know what the rear end and trans was in the car it came out of. I swapped the 7.25 rear out of my 72, replaced with a 8.25 and had to get the shaft shortened.

If yours has a 904/7.25 and so is the donor, you should be good. Replace the ujoints anyways. I pulled mine, and found they were factory units.