Revolution Gear & Axle Ring & Pinion Set for Toyota 8" IFS (4.30 Ratio, Thick, 29-Spline)

This is the Revolution Gear & Axle thick-cut ring and pinion set for the Toyota 8.0-inch IFS (clamshell) front differential in a 4.30 ratio with 29-spline and reverse rotation. It is the front gear set for many late-model Toyota IFS trucks and SUVs.

The set is machined from 8620 alloy steel and heat treated to meet or exceed OE standards. It uses the 8-inch IFS 29-spline pinion with an 8.0-inch ring gear. Because it is a thick-cut gear, the ring gear is designed to fit a 3.73-ratio and numerically lower carrier without changing carriers.

This 8" IFS front is found under a wide range of Toyota and Lexus vehicles – later Tacoma, 4Runner, and FJ Cruiser, plus related Lexus GX models – making a 4.30 a practical regear for owners who have gone up moderately in tire size and want to restore drivability.

Pay attention to the thick-versus-thin distinction: this is the THICK gear, so verify your current carrier ratio falls within the 3.73-and-down range before ordering. The set is gears only and does not include bearings, a crush sleeve, shims, a seal, a carrier, or a locker.

Pair it with the matching Revolution Gear master install kit for the Toyota 8" IFS to get the bearings and setup hardware, and have it installed by someone experienced with Toyota IFS setups. Gears carry a 2-year warranty against manufacturing defects.