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The Yukon USA Standard spider gear kit is a direct replacement for Ford 9" open differentials with a 31‑spline, 4‑pinion design, made to restore proper internal differential operation. These USA Standard kits employ quality materials and manufacturing to deliver extended service life at a good value. The package includes two side gears, four pinion gears, cross pin shaft, roll pins and thrust washers so you receive all components for a correct rebuild.
USA Standard Gear Standard Spider Gear Set For Ford 9in / 31 Spline / 4-Pinion Design
