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The Revolution Gear & Axle 5.13 ratio gear package is built for pre-1989 one-ton GM 14‑bolt swaps into Dana 60 axles. It pairs the specified 5.13 gearing with quality Koyo bearings to restore correct final drive ratios for heavy‑duty swap applications. This kit supplies the core gearing and bearings needed to match a Dana 60 setup in common one‑ton conversion projects.
Revolution Gear & Axle Pre-89 1-Ton Swap GM 14-Bolt Dana 60 Koyo Bearing 5.13 Ratio Gear Package
