BD Diesel 14-21 Chevy/GMC 1500 Roadmaster 6L80 Transmission & Converter Package- (4WD)

Already running headers and maybe an intake? This BD Diesel Roadmaster transmission and torque converter package is the next piece of the puzzle for your 2014-2021 4WD Chevy Silverado 1500 or GMC Sierra 1500. It's built to handle more power and last longer than the stock transmission, whether you're towing heavy or just want peace of mind with a lightly modified truck. This package addresses common failure points in the factory 6L80 transmission, giving you a more reliable drivetrain.

BD Diesel starts by rebuilding the valve body with updated clutch select and TCC regulator valves to smooth out shifting and prevent sticking. They've also included an updated GM forward piston designed to prevent cracks, a common issue with OEM parts. The package comes with a brand-new ProForce torque converter featuring a billet cover, which is a strong upgrade to prevent converter failure. A new pressure regulator valve is installed to ensure proper line pressure, and the TEHCM unit is cleaned, tested, and fitted with new seals and discs. Inside, you'll find new OEM clutches and steels, along with new molded pistons, all contributing to a more robust transmission.

To help manage heat, which is a major enemy of automatic transmissions, this package includes a deep cast aluminum oil pan. This pan adds an extra 2 quarts of fluid capacity compared to stock, helping to keep temperatures down and reduce clutch wear. The bellhousing and pump surfaces are also machined to eliminate wear and prevent pressure loss. This comprehensive rebuild means you're getting a transmission that's ready for more demanding use.

This package is designed as a direct replacement for your factory 6L80 transmission in 2014-2021 4WD Chevrolet Silverado 1500, GMC Sierra 1500, Chevrolet Suburban 1500, Chevrolet Suburban, Chevrolet Tahoe, GMC Sierra 1500 Limited, GMC Yukon XL, and GMC Yukon models. Refer to the manufacturer's installation instructions for specific details regarding fluid requirements and any other necessary components for installation.