6L90 (6.0L)(4x4) Chevy/GMC Silverado/Sierra
6-speed
Performance
Automatic
Transmission with Torque Converter
Recommended for engine mods or tuners up to 80 HP over stock. The RM1 series is a great choice for daily work trucks and plowing or towing trucks with a larger turbo, injectors and/or 5th wheel hitches.
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Roadmaster remanufactures premium 6L90 Performance Transmission RM1 Series ART45CBARM1 units. ART45CBARM1 is an RM1 series transmission designed for daily work trucks that have been upgraded as much as 80hp beyond stock units and also features a remanufactured torque converter.
ART45CBARM1
T8207AAR1000
RMP45CBARM1
RT45CBARM1
T8207AA
Roadmaster transmissions are available from Whatever It Takes Transmission Parts' nationwide locations. Choose your state below to find the location nearest you.
