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7.5 inch

  1. Engines/Performance/Tech Questions
    I ran into quite a a mess of problems trying to change the gear ratio of my 2012 Z71 RWD. The truck came with a 3.73 and I was trying to install a 4.11 ring and pinion. The truck should have a 8.6 inch rear diff according to all ring and pinion manufacturers (Yukon, Motive Gear), however mine is...