BD Diesel 1064844SS Roadmaster 6L80 Transmission and Converter Package for Silverado/Sierra 1500 4WD

The BD Diesel Roadmaster 6L80 Transmission and Converter Package is engineered to enhance the reliability and longevity of stock or lightly modified GM trucks. This complete remanufactured transmission solution addresses common 6L80 failure points with precision-machined components and upgraded internal parts.

Key Features:

• Billet ProForce torque converter with reinforced cover prevents the notorious converter failures common in stock units
• Remanufactured valve body with new clutch select and TCC regulator valves eliminates sloppy, inconsistent shifting
• Precision-machined bellhousing and pump surface eliminates wear patterns and prevents pressure loss
• Cast aluminum deep sump oil pan adds 2 quarts of fluid capacity to reduce operating temperatures and prevent clutch burnup
• Upgraded GM forward piston design resists cracking that plagues OEM pistons
• New pressure regulator valve maintains proper line pressure under all conditions
• All-new molded pistons, OEM clutches and steels, and TEHCM pressure switch seals
• Cleaned and tested TEHCM unit ensures proper electronic control

Installation Requirements:

• Estimated install time: 9 hours
• GM MDI2 or equivalent J2534 pass-thru scan tool required for TCM calibration update and relearn procedure (critical step before test-driving)
• HP Tuners capable of TCM programming as alternative method

Warranty Coverage:

• Parts: 24 months / 100,000 miles
• Labor: 12 months / 24,000 miles

Compatibility Notes:

• Does NOT fit 2019-2021 models with 5.3L VIN D (8th digit of VIN)
• Does NOT fit 2016-2018 Silverado High Country
• Does NOT fit 2016-2018 models with 5.3L VIN R (8th digit of VIN)
• Does NOT fit 2016-2018 Sierra Denali or SLT

Emissions Compliance: This replacement transmission package is legal for sale and use in all 50 states, including California. No EO number required.