driveshaft Length HELP ASAP!!

48.96 seems short. With a 904 and Dana, mine is right at 48". I'm probably wrong, but I think the Dana is more than an inch longer on the pinion than an 8 3/4. I put it in and measured it, then had the driveshaft made.


if that seems short maybe I dont even need to shorten my driveshaft? I think its best if I jsut take it home with me and measure it