Wheel Hop sucks and thats what it sounds like. So with the stg 2 roush you get suspension upgrades right? Maybe one of the bushings is rotted or torn or dried out? Maybe your pinion angle is off as well. Like others have said the panhard rod and LCA's will help greatly.

 

sounds like you guys are dead on, I've had the car for a year and it just started, so something must have broke back there recently. Put two coats of wax on her today, pics to come soon.

 

Lower control arms will help eliminate wheel hop, which is bad for your rear end, but I swear I get better tractions with the stock control arms. It's my opinion that the stock LCA's put less shock on the tires during launch, than my che's did. My che's broke by the way, so i can no longer recommend them. I think my next set of LCA's will be the GT500 ones. I'm hoping they give me just enough flex to keep my tires from spinning when I shift into 2nd or 3rd.

 

that sucks moose!......hope the GT500 LCAs work for you!