Bore out service - D300 Retainer TH400 This kit is designed to

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

Armor (Standard) Core: consists of stainless steel flat wire swaged over galvanized steel stranded cable

AND a  DIY builder's model that is case only - allowing you to use and install your own gears

or low-volume production program

Optimized for front or rear independent suspension systems

Bore out service - D300 Retainer TH400 This kit is designed toIf 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.