I want to notch the rear frame rails on the surf to fit my shocks. Obviously it will be gusseted etc to regain the strength.
As I have just fabbed a tri 4 link there are no other suspension hangers beyond where I want to do the channeling, just a body mount each side.
Can some give the guide lines (well as they understand them anyway

This rig is going to be road legal, hence the qusetion, if it was bash only, I would just do it

Cheers