Hi, recently purchased a 2004 4.7L 4x4. Was getting shuddering around corners and a whining from rear. Dealer replaced rear differential under warranty. Still experiencing fairly significant shudder when making a turn from a complete stop. Dealer says nothing wrong, but doesnt seem right to me. Never driven a vehicle that did that, ever. Any thoughts on this would be appreciated. My only thought is that it could be due to the rear tires not getting proper traction and causing the limited slip to worik too much. The tires arent great, but they arent terrible either. Any help would be appreciated.

 

Mine takes more friction modifier than what comes std in the gear oil, did they add the extra friction modifier? 4 oz, I believe, needs to be added to the rear end on my "97 limited slip.

 

They say they did add the modifier, but I have to wonder.

 

Id say redo the rear end oil cause it sounds like the friction mod stuff wasnt put in. Also gives you a chance to look at your gears and stuff.

 

Going to bring it back into dealer on Monday. They insisted they put the additive in and told me to drive it for a while and it would be ok, but I've put 1000km on it now, so they can look at it and perhaps put more additive in. They are generally not too bad to deal with, so hopefuly they wiil be helpful.