DesertRat04
Junior Member
I recently bought a set of USA Standard Gear 3.55's for my 04 and after opening the box I noticed that the number on them (c9.25b/355b) was for USG's 9.25ZF line of gears. However the ring gear looks to be double drilled to fit either bolt size. Are there any other differences between the 9.25 and the 9.25zf ring and pinion or are these double drilled sets meant to be interchangeable? Any help/info would be appreciated.
