anyone who has done the guldstrand mod on their 68 firebird or camaro....

[68firebird]

If you have done the mod and still use the stock upper control arm and you also use a 2 inch drop spring did you have to notch the control arm for it to fit. I'm just doing some homework on this. I haven't gotten my offset shafts in nor have I drilled the new holes to relocate for the mod so I can't see for myself yet. Just curious what others have done with the same situation. thanks guys.