I'm tired of the vibration. Is flipping the shim around similair to installing shackles as far as raising up the truck and supporting the rear end. Do I need to completely ubolt the u-bolts or do they just need to be loosened?

Any help is appreciated

 

If you take the shims out, you will need to have the rear realigned at a shop.

 

No I want to flip the ones that are in there. '03 have shims. All I want to do is flip the fat part towards the back instead of front.

Is an alignment still necessary then?

 

Follow these 2 links:

https://www.f150online.com/forums/sh...hreadid=105402


http://www.nhtoc.com/forum/showthrea...nion+vibration

 

Yes, you will need an alignment.