Forum Discussion
ACZL
Aug 14, 2020Explorer
IMO, sounds like a U-joint if at Hiway speed. Had a '91 GMC 2500 ext cab, LB, 4x4, 454 and it had a shudder upon take off. Ended up that GM re-located the driveshafts so angle of things was better. Cured the shudder. Don't recall now the driveshaft configuration......sorry.
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