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Setting Backlash

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The Ford 9-inch has one of the easiest ring and pinions to set up. We used a complete solid spacer install kit from Superior Axle & Gear (PN 35-2011D) and stuffed everything into the stock Ford 9-inch third member case and pinion support. Pinion bearing preload is set to 13 to 15 inch-pounds. We adjusted the carrier bearings and pinion shims until we had a good pattern in the gear marking compound. The final backlash is set to .007 to .010-inch using a dial indicator. Then the bearing caps are torqued to 60 lb-ft.

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