Rear vibration ...need help,suggestions

[Hart_Rod]

Originally Posted by davischevy

Nope, I've been sick for the last few weeks and haven't really felt like messing with it. I put my big tires back on it and have just been driving it.

Does it hop with these tires?

It does it with both sets of wheels and tires.

Originally Posted by 72MARIO

Any ford dealership should stock it. Its 6$ CDN. I had problems with the CRseal posi additive. As soon as the truck got warm it would bind up going around corners. The ford additive solved that problem.

I'll see what I can find. This is what I put in when I changed the axles out (7 oz):

http://shop.advanceautoparts.com/p/k...ive#fragment-1