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The Yukon Ring-and-Pinion Gear Kit with installation hardware for Toyota 8.4/8" IFS differentials (without factory locker) delivers matched front and rear gears at a 4.88 ratio. Supplied as a complete kit with the installation hardware needed to re-gear both differentials, it fits 3.91-and-up front carrier cases and covers common 8.125" ring gear rear applications for proper ratio conversion.
Yukon Ring & Pinion Gear Kit Front & Rear for Toyota 8.4/8IFS Diff (w/o Factory Locker) 4.88 Ratio
