The Yukon Ring-and-Pinion Gear Kit with installation hardware for Toyota 8.4/8" IFS differentials (without factory locker) supplies front and rear gear sets in a 4.88 ratio. Packaged with installation components, this kit fits 3-series front carrier cases and rear 8.125" ring gear applications, including the 30-spline pinion configuration for a complete re-gear solution.
Yukon Ring & Pinion Gear Kit Front & Rear for Toyota 8.4/8IFS Diff (w/o Factory Locker) 4.88 Ratio