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Revolution Gear & Axle 4.88 ratio gear package for 1999–2007 1-ton GM 14-bolt to Dana 60 swap applications, fitted with Koyo bearings. The reverse-cut, thick ring-and-pinion set supplies a 4.88 final drive for Dana 60 conversions and includes Koyo bearing support intended to aid reliable assembly and correct axle gearing after a swap.
Revolution Gear & Axle 99-07 1-Ton Swap GM 14-Bolt Dana 60 Koyo Bearing 4.88 Ratio Gear Package
