15x8 w/ 4.5” BS on front/good handling size?

67autocross said
I tried some 15 x 7.5 slot mags on the front of the beater a few weeks ago…4.75 back space… they hit the upper A arms… maybe a steel wheel would work clear….

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The original poster has QA1 UCA’s. Those give about 1/4” or so more clearance.

Also, they may rub at full droop. So need to check at ride height.

Then you can put 1/16”, 1/8”, 3/16” spacer to fine tune the clearance (front and rear)

But you are right full cast rim can reduce clearance. Especially old rims. The welded center to spun aluminum hoops have more room.