The item is compatible with RB26DETT setups and is for serious RB26 tuners. The strengthened main shaft makes your transmission much more reliable since it can sometimes become the weakest link in your entire drivetrain.

The gearing is as follows:

First Gear: 2.695 (OEM 3.214)

Second Gear: 1.703 (OEM 1.925)

Third Gear: 1.236 (OEM 1.302)

(4th OEM 1.000)

Fifth Gear: 0.826 (OEM 0.752)

**For use with the FS5R30A transmission.

NOTE: Can also be used with the Hollinger unit.

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