Can U limit rear end travel?
 

My tires r coming up and rubbing on the outside of the fender under hard acceleration I need to know if there is a way to limit how far the rear end will travel up into the frame. I already have adjustable control arms anti-squat relocation brackets and KYB AGX shocks and and stiff springs. I was thinking of buying new bump stops but can't find any. Any Ideas. Ohh and I can't bang out the fender wells any further.

Take a string with a washer on it and hang it down from your fender and measure both sides from the string to the edge of the tire. Your rear end might be offset. Mine was almost half inch to the passenger side. An adjustable panhard rod will take care of it.
Or your tires are just too wide.
Ive heard you can shave the bump stops some also.