I used SSBC-USA for my '71 Dart GT. It was done about 15 years ago (when it was called SSBC). It was expensive, but it is a very complete kit and an easy swap. SSBC-USA front discs also allow for either the SBP (Small Bolt Pattern (5 on 4")) or the LBP (Large Bolt Pattern (5 on 4 1/2")). I opted for the SBP as I already had SBP Rallye wheels that I wanted to keep (I have 14" up front and 15" on the rear), and the factory SBP 8 3/4" rear-end.
Also, the factory 14" X 5 1/2" (or the 14" X 4 1/2") SBP
STEEL wheels did
NOT fit my car.
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