944 Turbo Alloy Arm Geometry

[dgluyas]

I have the 944T wide (71mm wider alloy arms)
These arms are running 18x8.5 52mm ET wheels and will now need 4.5 inch wider guards.(yes I am a nutcase!) While fabbing these up I changed to 944 spring plates (Adjustable). The head of the adjuster bolts rub against the frame slightly . To help this- I had some spacers made up that go between the suspension rubber in the torsion housing and the inside of the spring plate . I found out it needs to be at least the width of the bolt heads- + a little more for clearance-What have others done? (I dont want to clearance the frame and weaken it!)
Cheers David