The BD TrackMaster 68rfe transmission is built for robust reliability in high-load applications! Designed for modified Cummins-equipped RAM Trucks, the TrackMaster increases strength with a modified valve body, billet input shaft, and HD Billet OD Drum. These modifications increase the torque capacity of the clutch packs, specifically with nearly 50% increased OD clutch apply! This is obtained with the oversized HD OD drum, combined with the BD Big Stack OD clutch pack, utilizing the 250psi apply pressure created by the ProTech68 valve body! The transmission also receives a BD Diesel Deep aluminum pan, for an additional 4.5 quarts of fluid, helping to keep transmission temperatures cool while towing. Every TrackMaster 68RFE transmission package includes a billet multi-disc ProForce 3D enhanced stall torque converter and is dyno tested before shipping.