Yukon high-performance ring and pinion gear set in a 4.88 ratio for the Dana S111 is engineered to OEM fitment with a 12.25-inch ring gear diameter and 34-spline pinion. Yukon uses advanced heat-treating and finishing processes to reduce friction and heat; this gear set is intended for heavier-duty or higher-traction applications where a 4.88 final drive ratio is required.
Yukon Gear High Performance Gear Set For Dana S111 in a 4.88 Ratio