Bore out service - D300 Retainer Transfer Case Our twin cable mounting bracket

Our twin cable mounting bracket is designed to fit with our entire Colossus transfer case product line

ICE-to-EV conversions

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

Two shift knobs

or JB Conversions 4:1 LowMax gears and is ready to install on your drive right out of the box

Bore out service - D300 Retainer Transfer Case Our twin cable mounting bracketIf you are upgrading your Dana 300 from a stock 26 spline front output shaft to a 32 spline, you need to bore out your input retainer to fit the upgraded larger shaft. For customers that are not able to do this on their own, or do not have access to a machine shop, Behemoth Drivetrain offers bore out service for these retainers. The service works for both the Behemoth Drivetrain model 32 spline shaft and the JB Conversions 32 Spline front output.