18x9.5 +12

yeah, those Hotchkis A-body UCA’s take a wide turn from the UBJ’s..... I could not run rear mounted pin calipers with 11.75 disks. I had to swap spindles side to side and mount calipers in the front. -not sure about slider calipers.

That worries me about 13” disk upgrades too.

I want them rear mounted so I can run brake ducts.

I had the same issue when I put the hotchkis control arms on. I think the Dr Diff kit is front mount only with the hotchkis UCAs.
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