my 250 truck front diferencial works but when i make turns right or left makes noises and shakes i changed hub both sides drive shaft seals locks it's all new but it still not fixed what can it be?
inside the differential....the "spider gear" pin fell off~
You're sure it's not stuck in 4WD, right? GM liked to use vacuum- operated actuators (not sure if they still do) which would crap out, but I would imagine they would "fail safe", ie, stuck in 2WD, not 4... As said above though, pulling the differential cover would be a good idea to make sure things are okay in there...
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