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10 bolt = 8.5in or '99+, designated 8.6in ring gear
14 bolt semi floater (sf) = 9.5in ring gear
14 bolt full floater (ff) = 10.5in ring gear
Ok here are my stupid questions is there anyway to find out the gear ratio for my rear axle with out opening it up? It is a 3/4 ton axle put under a half ton. Also question number two why does it only have 6 lugs, it is a 14bolt axle?