Dana 300 Colossus - Billet D300 Replacement Case (no gears) RAD Designs The NP241 Standard Strongbox underdrive

The NP241 Standard Strongbox underdrive by Behemoth Drivetrain is engineered for extreme strength

The DIY Ranger Standard Strongbox underdrive by Behemoth Drivetrain is engineered for extreme strength

This kit is designed to to fit all models of Strongbox units

Fully geared with 4:1 LowMax gears a completely geared APEX weights in at only 72 pounds

Dana 300 Colossus - Billet D300 Replacement Case (no gears) RAD Designs The NP241 Standard Strongbox underdriveThe DIY Colossus Billet Dana 300 replacement case by Behemoth Drivetrain is engineered for extreme strength, low weight, and incredible performance. This DIY model is case only allowing you to choose and install your own gears. Front Digs in High and Low: Fully clockable, the Colossus allows for both passenger or driver drop and the Behemoth twin stick design allows for independent selection of any gear letting you perform front digs in both high and