Stock A-body brakes are 10x1 3/4(SBP) and I beleive C-body are 11x2 1/2 inch brakes (LBP)If your gonna swap axels to LBP,just mention that your using the 11x2 1/2 inch brakes.Parts for the 10x1 3/4 brakes are getting harder to find,so I,ve swapped all my backing plates and brakes to 10x2 1/2 for availability.The depth offset is different with Stock A-body backing plates.
