Our 1965 Mustang didn’t come with a driveshaft, but we scored a good used one at Cobra Automotive. While the U-joints seemed okay, we wanted to make sure that we had fresh ones before hitting the track.
The crew at Cobra Automotive recommended heavy-duty Spicer U-joints instead of no-name replacements. The part number is 5-1330X, and they cost about $30 …