hello everyone.

I have an '03 f-150 2wd. when i make a turn from a stop the whole rear end of the truck gets a bad vibration in it and as i make the turn there is a squeaking from the rear end. the vibration also happens from a stop and accelerating to go straight. feels like something is slipping in the rear end. The whole truck vibrates when this happens.

 

Try this post thread.

https://www.ford-trucks.com/forums/5...der-power.html

Hope it helps.

 

03 FX4 with the same problem
My 2003 SCrew FX4 (5.4/3:73 gears/limited slip diff) with 72700 miles on it did the same thing last week...had the shudder/vibration during shallow turns (1/2 to 1 turn of the steering wheel) at low speed and upon acceleration. After a 26 mile drive home, rear end was "howling."

Dropped it off at the dealer, they replaced the "Gear and Pinion and Diff Clutch Packs per TSB 05-23-30."