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Product Information

This listing covers the exact Yukon Gear & Axle differential spider gears configuration identified as Yukon Gear & Axle Gear Standard Open Spider Gear Kit For 9.75in w/34 Spline Axles.

Catalog fitment covers the listed 1997-2025 vehicle applications. Exact year and submodel combinations appear in the fitment table below; compatibility must not be inferred for every trim across the full range.

Manufacturer-supplied details include Higher quality materials than the factory spider gear set, aimed at a longer service life under regular driving; Manufacturing techniques the brand says go beyond OEM production, part of what's behind that longer-lasting claim; Everything needed for a complete, proper spider gear set replacement in one kit, so you're not hunting down individual gears separately.

This is a set of spider gears for the F-150's open differential carrier, the kind of part that goes in on a case-apart job, not a bolt-on swap. That's real labor: budget for a shop visit unless you already do your own differential work.

What else you need: check the included instructions or a Yukon install guide for the specific tools, gear oil, and any other hardware this job calls for.

Listed specifications include Part type: Differential Spider Gears; Axle housing: 9.75 in Ford rear axle; Axle spline count: 34 spline.

Use manufacturer part number YPKF9.75-S-34 to identify this exact Yukon Gear & Axle configuration. Match the full part number, vehicle application, position, dimensions, material, finish, and included components before ordering.

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