the rear end in my 01 f150 4x4 starts to shutter when accel/turning after about 10 miles of driving. 5 more miles and it starts grinding. works good when cool. anyone know why it would do this?
it runs great. even after the engine is warm. but after about 10 miles of driving, the rear end starts to shutter when accelerating around a turn (like turning from a stop sign). then after about 5 more miles it will start grinding. if anyone has any ideas, i can realy use the help. it has the local mechanics stumped...
If you have gone through the rear-end and are confident there are no issues there maybe look at the U-joints on drive shaft. U-joints will usually make a higher pitch squeal and or grinding noise and can come and go. Or possibly transmission is sending some vibration through drive shaft to rear-end.......
Check the axle code, you may have a limited slip rear end, if that is the case then put in some limited slip additive. You may have to drain out some differential grease to add the proper amount.
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