- Jul 6, 2015
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I'm replacing used 3.27 gears with new 3.55 gears from Ford racing. All bearings, seals, clutch pack, and ring gear bolts have been changed. Both old and new pinion gear head were the same depth down to 0.0001 of inch so I used the old pinion shim and replaced on the new gear. Backlash was too much (.017") so I decreased it to .011" since its my first gear swap I would like a second opinion on the wear pattern, Thanks