Total Spline Input Gear

Marlin Crawler's Exclusive Total Spline 23-spline 2.28:1 transfer case input gear, the strongest 23-spline input gear in the world, period. This will convert a 21-spline 1979-1995 4-cylinder transfer case to a 23-spline version so that the stronger 5spd R150F (3.0L V6) and R151F (2.4L Turbo I4) transmissions may be used. Fits any gear driven t/case originally fitted to 4cyl 1979-1995 trucks and 4Runners, and used in all our 1979-2019+ Dual Case and TacoBox setups. Factory 2.28:1 Gear Ratio.

This is the strongest 2.28:1 input gear in the world.

• Total-Spline™ Technology

• Heat Treated Chromoly Steel

• Full-length Spline Engagement

• Addresses one of the weakest parts of your t/case

• Minimizes Dual Case Coupler wear, combats strip-outs

Build your transfer case right the first time, and put your tools away!