BD Diesel 03-07 Dodge 48RE Stage 4 Build-it Kit w/Torque Converter

If you're looking to rebuild your 48RE transmission in your 2003-2007 Dodge Ram 2500, 1500, or 3500, this Stage 4 Build-it Kit from BD Diesel is a solid choice. This kit includes all the basic rebuild parts and gaskets you'll need, plus the specialty components that BD uses in their own performance transmission builds. It's designed for seasoned builders who want to match their transmission's strength to their truck's demands, whether for street driving or towing.

At the heart of this kit is BD's ProForce 3D torque converter. It features a CNC-machined billet cover that resists warping and helps maintain proper balance, even under high heat. The clutch piston and damper assembly are built for increased strength while still providing smooth engagement and vibration damping. You'll also find a self-centering trapezoid clutch teeth design, which ensures better alignment and reduces wear for a longer lifespan. This converter is engineered for enhanced stall, making it suitable for both street and towing applications. The kit also includes upgraded friction materials from Allomatic and Borg Warner, high-temp Raybestos bands, and billet steel components for key areas like the band anchor and accumulator piston, all designed to handle increased power and heat.

BD Diesel has packed this kit with components that offer improved durability and performance over stock. You'll get increased clutch counts in the rear clutch piston and a new sprag component for long-term reliability. The kit also includes a shifter bracket and lever kit with a 4.2 ratio for improved shifting control. Compared to some competitors, this kit is about 12 lbs lighter, thanks to its stamp-forged, one-piece cover design. This kit contains everything you need to perform a comprehensive transmission overhaul, using the same parts BD Diesel trusts in their own high-performance builds.