I agree with Triton, mine started to shutter at take off at 7,100 miles, im taking it to Ford tomorrow for that and a couple of other things, to get the pad thing removed behind the tail light, and to get the front brakes looked at, i can really feel the wheel when applying the brake.

 

Hasen't there been a few guys on here saying their fuel mileage went to crap after their dealer's worked on their rears??

Rocky is right. Cut a few figure 8's in a parking lot to loosen them up.. Ones thing for sure... If you have the problem you'll hear/feel it when you do this..

 

Would you please help me try to figure the poor MPG problem. What I need to know is that any of you that have the rear shudder problem, What kind of MPG do you get? Mine has the LS and has a shudder and its getting around 11-12mpg. The last truck I had wasn't LS and it averaged 16-17mpg. I have a feeling this is related. I felt my rearend after a long drive and it was hot, just about 5 degrees from being too hot to touch.

 

Well, I just got my truck back after being in the shop for the shudder, gas door and throttle lag.

The dealership replaced the clutch packs, dropped the drive shaft and greased it up. It just made the problem worse. Now everytime I start off from a stop. The truck feels like it tugs twice and then starts moving.

Has anyone else had any issues with their LSD after the clutch packs were replaced?

 

I'm just gonna get me a spool. Limited slips are for wussies.

 

Yes! They then replaced everything in the rear end to correct the problem. Now if the very slight whine would go away.

 

I had my clutch packs replaced yesterday, The truck is smooth as silk now. Thanks goodness for warrenty.

 

Did you have poor mpg before and any change after? Thanks!

 

this was just discussed earlier this week:
https://www.f150online.com/forums/sh...hreadid=187969

 

what happens if this doesn't get fixed?