ZF6- Ford started using this transmission design in ’99 and they work well behind the Cummins. They are rated for 520 ft/lbs of torque. Our adapter plate for this transmission uses the Ford 6.0 starter, so no grinding of the transmission or engine block is required for starter clearance.

The best option is to use a Ford 7.3 ZF6 clutch with the proper flywheel all of which is included in the complete conversion kits and clutch kits that DCS offers.