All the 1969-72 GPs we've seen with Rally II wheels were 14x7s.
Historically the 15x7 Rally IIs were available late in 1972, but we've never actually seen any with 15x7s.
Maybe the four we had were all early-model-year builds (?). I don't think I even kept the VINs on those and, unfortunately, we sold our last 1972 GP a dozen years ago to concentrate on 1969s.
Two of the 1972s were 455s and both had factory 3.08 non-posi 12-bolts.
We've had two 1970 GP SJs with 455s and both of those had 12-bolt limited slip rear-ends.
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