Mechanic says I need a longer front driveshaft for 1999 F250 Super Duty

cwatkin
Wed, 21 May 2025 12:05:31 +0000
General Discussion

None of the women I have been with say I need a longer front driveshaft but my mechanic does!

Anyway, I noticed some slop in the front driveshaft of my 1999 F250 Super Duty before taking it in for some noises from the drivetrain. The noise wasn’t related to the 4WD system but I brought this issue up to the mechanic. The truck has been lifted and he said that because of this, the splines are pulled out near the end of their travel and this results in this slop and a likely weak link in my 4WD system. It seems like about a 4 inch lift which it came with. He said aftermarket shafts should be available for those who lift their truck and this is what mine should have.

The truck is a 5.4L, 4WD, 5 speed manual, manual transfer case, extended cab, regular bed if that matters.

33 posts - 10 participants