We haven't built one yet for the shop, but there are Two part numbers for the white ball cups
I would suspect the short ones go out on the turnbuckle at the wheel to provide the required clearance at the rim. I believe my D-06 I built the same way
Timezone Raceway Park " on-road outdoor european style road course.
Timezone II 60'x100' indoor carpet track. Host of the ROAR 2011 Carpet Nat's.
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