Command the torque converter to stay locked, stay unlocked, or revert to OEM settings with the BD TorqLoc. Flip the toggle switch to position one, and the lock-up clutch is engaged, so transmission temperature remains low and the exhaust brake can work with 100-percent effectiveness (this is a manual setting and should only be selected under light load/light power conditions, such as highway driving). Position two reverts back to stock function, or can be wired to unlock the torque converter. Position three acts as an AutoLoc by commanding lock-up only when the exhaust brake is engaged - perfect setting for every day driving in all situations. Additionally, the TorqLoc has an Overdrive inverter option which allows the transmission to start out in Drive which will prevent upshift into the Overdrive gear - great for those who live in city/urban areas. Also, if you have a BD Valve Body with the second gear lock-up capability, the lock-up can be set to hold until 5-10 mph.Also available is the Torq/UnLoc which acts the same as the TorqLoc but in the third position the converter is prevented from locking up.
BD Torq/UnLoc Kit Dodge 1994-2004 5.9L Cummins/Chevy 1992-2000 6.5L(T)

Fitment:
Chevrolet C1500 Base 1994
Chevrolet C1500 Base 1995
Chevrolet C1500 Base 1996
Chevrolet C1500 Base 1997
Chevrolet C1500 Cheyenne 1994
Chevrolet C1500 Cheyenne 1995
Chevrolet C1500 Cheyenne 1996
Chevrolet C1500 Cheyenne 1997
Chevrolet C1500 Cheyenne 1998
Chevrolet C1500 Silverado 1994
Chevrolet C1500 Silverado 1995
Chevrolet C1500 Silverado 1996
Chevrolet C1500 Silverado 1997
Chevrolet C1500 Silverado 1998
Chevrolet C1500 WT 1994
Chevrolet C1500 WT 1995
Chevrolet C1500 WT 1996
Chevrolet C1500 WT 1997
Chevrolet C1500 WT 1998
Chevrolet C2500 Base 1994
Chevrolet C2500 Base 1995
Chevrolet C2500 Base 1996
Chevrolet C2500 Base 1997
Chevrolet C2500 Base 1999
Chevrolet C2500 Base 2000
Chevrolet C2500 Cheyenne 1992
Chevrolet C2500 Cheyenne 1993
Chevrolet C2500 Cheyenne 1994
Chevrolet C2500 Cheyenne 1995
Chevrolet C2500 Cheyenne 1996
Chevrolet C2500 Cheyenne 1997
Chevrolet C2500 Cheyenne 1998
Chevrolet C2500 LS 1999
Chevrolet C2500 LS 2000
Chevrolet C2500 Silverado 1992
Chevrolet C2500 Silverado 1993
Chevrolet C2500 Silverado 1994
Chevrolet C2500 Silverado 1995
Chevrolet C2500 Silverado 1996
Chevrolet C2500 Silverado 1997
Chevrolet C2500 Silverado 1998
Chevrolet C2500 WT 1994
Chevrolet C2500 WT 1995
Chevrolet C2500 WT 1998
Chevrolet C3500 Base 1994
Chevrolet C3500 Base 1995
Chevrolet C3500 Base 1996
Chevrolet C3500 Base 1997
Chevrolet C3500 Base 1999
Chevrolet C3500 Base 2000
Chevrolet C3500 Cheyenne 1992
Chevrolet C3500 Cheyenne 1993
Chevrolet C3500 Cheyenne 1994
Chevrolet C3500 Cheyenne 1995
Chevrolet C3500 Cheyenne 1996
Chevrolet C3500 Cheyenne 1997
Chevrolet C3500 Cheyenne 1998
Chevrolet C3500 LS 1999
Chevrolet C3500 LS 2000
Chevrolet C3500 Scottsdale 1992
Chevrolet C3500 Silverado 1992
Chevrolet C3500 Silverado 1993
Chevrolet C3500 Silverado 1994
Chevrolet C3500 Silverado 1995
Chevrolet C3500 Silverado 1996
Chevrolet C3500 Silverado 1997
Chevrolet C3500 Silverado 1998
Chevrolet K1500 Base 1994
Chevrolet K1500 Base 1995
Chevrolet K1500 Base 1996
Chevrolet K1500 Base 1997
Chevrolet K1500 Cheyenne 1994
Chevrolet K1500 Cheyenne 1995
Chevrolet K1500 Cheyenne 1996
Chevrolet K1500 Cheyenne 1997
Chevrolet K1500 Cheyenne 1998
Chevrolet K1500 Silverado 1994
Chevrolet K1500 Silverado 1995
Chevrolet K1500 Silverado 1996
Chevrolet K1500 Silverado 1997
Chevrolet K1500 Silverado 1998
Chevrolet K1500 WT 1994
Chevrolet K1500 WT 1995
Chevrolet K1500 WT 1996
Chevrolet K1500 WT 1997
Chevrolet K1500 WT 1998
Chevrolet K2500 Base 1994
Chevrolet K2500 Base 1995
Chevrolet K2500 Base 1996
Chevrolet K2500 Base 1997
Chevrolet K2500 Base 1999
Chevrolet K2500 Base 2000
Chevrolet K2500 Cheyenne 1992
Chevrolet K2500 Cheyenne 1993
Chevrolet K2500 Cheyenne 1994
Chevrolet K2500 Cheyenne 1995
Chevrolet K2500 Cheyenne 1996
Chevrolet K2500 Cheyenne 1997
Chevrolet K2500 Cheyenne 1998
Chevrolet K2500 LS 1999
Chevrolet K2500 LS 2000
Chevrolet K2500 Silverado 1992
Chevrolet K2500 Silverado 1993
Chevrolet K2500 Silverado 1994
Chevrolet K2500 Silverado 1995
Chevrolet K2500 Silverado 1996
Chevrolet K2500 Silverado 1997
Chevrolet K2500 Silverado 1998
Chevrolet K2500 WT 1994
Chevrolet K2500 WT 1995
Chevrolet K2500 WT 1998
Chevrolet K3500 Base 1994
Chevrolet K3500 Base 1995
Chevrolet K3500 Base 1996
Chevrolet K3500 Base 1997
Chevrolet K3500 Base 1999
Chevrolet K3500 Base 2000
Chevrolet K3500 Cheyenne 1992
Chevrolet K3500 Cheyenne 1993
Chevrolet K3500 Cheyenne 1994
Chevrolet K3500 Cheyenne 1995
Chevrolet K3500 Cheyenne 1996
Chevrolet K3500 Cheyenne 1997
Chevrolet K3500 Cheyenne 1998
Chevrolet K3500 LS 1999
Chevrolet K3500 LS 2000
Chevrolet K3500 Scottsdale 1992
Chevrolet K3500 Silverado 1992
Chevrolet K3500 Silverado 1993
Chevrolet K3500 Silverado 1994
Chevrolet K3500 Silverado 1995
Chevrolet K3500 Silverado 1996
Chevrolet K3500 Silverado 1997
Chevrolet K3500 Silverado 1998
Dodge Ram 2500 Base 1994
Dodge Ram 2500 Base 1995
Dodge Ram 2500 Base 1996
Dodge Ram 2500 Base 1997
Dodge Ram 2500 Base 1998
Dodge Ram 2500 Base 1999
Dodge Ram 2500 Base 2000
Dodge Ram 2500 Base 2001
Dodge Ram 2500 Base 2002
Dodge Ram 2500 Laramie 2003
Dodge Ram 2500 SLT 2003
Dodge Ram 2500 SLT 2004
Dodge Ram 2500 ST 2003
Dodge Ram 2500 ST 2004
Dodge Ram 3500 Base 1994
Dodge Ram 3500 Base 1995
Dodge Ram 3500 Base 1996
Dodge Ram 3500 Base 1997
Dodge Ram 3500 Base 1998
Dodge Ram 3500 Base 1999
Dodge Ram 3500 Base 2000
Dodge Ram 3500 Base 2001
Dodge Ram 3500 Base 2002
Dodge Ram 3500 Laramie 2003
Dodge Ram 3500 Laramie 2004
Dodge Ram 3500 SLT 2003
Dodge Ram 3500 SLT 2004
Dodge Ram 3500 ST 2003
Dodge Ram 3500 ST 2004
GMC C1500 Sierra GT 1997
GMC C1500 Sierra SL 1994
GMC C1500 Sierra SL 1995
GMC C1500 Sierra SL 1996
GMC C1500 Sierra SL 1997
GMC C1500 Sierra SLE 1994
GMC C1500 Sierra SLE 1995
GMC C1500 Sierra SLE 1996
GMC C1500 Sierra SLE 1997
GMC C1500 Sierra SLT 1994
GMC C1500 Sierra SLT 1995
GMC C1500 Sierra SLT 1996
GMC C1500 Sierra SLT 1997
GMC C1500 Sierra Special 1994
GMC C1500 Sierra Special 1995
GMC C1500 Sierra Special 1996
GMC C1500 Sierra Special 1997
GMC C2500 Sierra 1992
GMC C2500 Sierra 1993
GMC C2500 Sierra SL 1994
GMC C2500 Sierra SL 1995
GMC C2500 Sierra SL 1996
GMC C2500 Sierra SL 1997
GMC C2500 Sierra SL 1998
GMC C2500 Sierra SL 1999
GMC C2500 Sierra SL 2000
GMC C2500 Sierra SLE 1992
GMC C2500 Sierra SLE 1993
GMC C2500 Sierra SLE 1994
GMC C2500 Sierra SLE 1995
GMC C2500 Sierra SLE 1996
GMC C2500 Sierra SLE 1997
GMC C2500 Sierra SLE 1998
GMC C2500 Sierra SLE 1999
GMC C2500 Sierra SLE 2000
GMC C2500 Sierra SLT 1994
GMC C2500 Sierra SLT 1995
GMC C2500 Sierra SLT 1996
GMC C2500 Sierra SLT 1997
GMC C2500 Sierra SLT 1998
GMC C2500 Sierra SLT 1999
GMC C2500 Sierra SLT 2000
GMC C2500 Sierra SLX 1992
GMC C2500 Sierra SLX 1993
GMC C3500 Sierra 1992
GMC C3500 Sierra 1993
GMC C3500 Sierra SL 1994
GMC C3500 Sierra SL 1995
GMC C3500 Sierra SL 1996
GMC C3500 Sierra SL 1997
GMC C3500 Sierra SL 1998
GMC C3500 Sierra SL 1999
GMC C3500 Sierra SL 2000
GMC C3500 Sierra SLE 1992
GMC C3500 Sierra SLE 1993
GMC C3500 Sierra SLE 1994
GMC C3500 Sierra SLE 1995
GMC C3500 Sierra SLE 1996
GMC C3500 Sierra SLE 1997
GMC C3500 Sierra SLE 1998
GMC C3500 Sierra SLE 1999
GMC C3500 Sierra SLE 2000
GMC C3500 Sierra SLT 1994
GMC C3500 Sierra SLT 1995
GMC C3500 Sierra SLT 1996
GMC C3500 Sierra SLT 1997
GMC C3500 Sierra SLT 1998
GMC C3500 Sierra SLT 1999
GMC C3500 Sierra SLT 2000
GMC C3500 Sierra SLX 1992
GMC C3500 Sierra SLX 1993
GMC K1500 Sierra SL 1994
GMC K1500 Sierra SL 1995
GMC K1500 Sierra SL 1996
GMC K1500 Sierra SL 1997
GMC K1500 Sierra SL 1998
GMC K1500 Sierra SLE 1994
GMC K1500 Sierra SLE 1995
GMC K1500 Sierra SLE 1996
GMC K1500 Sierra SLE 1997
GMC K1500 Sierra SLE 1998
GMC K1500 Sierra SLS 1995
GMC K1500 Sierra SLT 1994
GMC K1500 Sierra SLT 1995
GMC K1500 Sierra SLT 1996
GMC K1500 Sierra SLT 1997
GMC K1500 Sierra SLT 1998
GMC K1500 Sierra Special 1994
GMC K1500 Sierra Special 1995
GMC K1500 Sierra Special 1996
GMC K1500 Sierra Special 1997
GMC K1500 Sierra Special 1998
GMC K2500 Sierra 1992
GMC K2500 Sierra 1993
GMC K2500 Sierra SL 1994
GMC K2500 Sierra SL 1995
GMC K2500 Sierra SL 1996
GMC K2500 Sierra SL 1997
GMC K2500 Sierra SL 1998
GMC K2500 Sierra SL 1999
GMC K2500 Sierra SL 2000
GMC K2500 Sierra SLE 1992
GMC K2500 Sierra SLE 1993
GMC K2500 Sierra SLE 1994
GMC K2500 Sierra SLE 1995
GMC K2500 Sierra SLE 1996
GMC K2500 Sierra SLE 1997
GMC K2500 Sierra SLE 1998
GMC K2500 Sierra SLE 1999
GMC K2500 Sierra SLE 2000
GMC K2500 Sierra SLT 1994
GMC K2500 Sierra SLT 1995
GMC K2500 Sierra SLT 1996
GMC K2500 Sierra SLT 1997
GMC K2500 Sierra SLT 1998
GMC K2500 Sierra SLT 1999
GMC K2500 Sierra SLT 2000
GMC K2500 Sierra SLX 1992
GMC K2500 Sierra SLX 1993
GMC K3500 Sierra 1992
GMC K3500 Sierra 1993
GMC K3500 Sierra SL 1994
GMC K3500 Sierra SL 1995
GMC K3500 Sierra SL 1996
GMC K3500 Sierra SL 1997
GMC K3500 Sierra SL 1998
GMC K3500 Sierra SL 1999
GMC K3500 Sierra SL 2000
GMC K3500 Sierra SLE 1992
GMC K3500 Sierra SLE 1993
GMC K3500 Sierra SLE 1994
GMC K3500 Sierra SLE 1995
GMC K3500 Sierra SLE 1996
GMC K3500 Sierra SLE 1997
GMC K3500 Sierra SLE 1998
GMC K3500 Sierra SLE 1999
GMC K3500 Sierra SLE 2000
GMC K3500 Sierra SLT 1994
GMC K3500 Sierra SLT 1995
GMC K3500 Sierra SLT 1996
GMC K3500 Sierra SLT 1997
GMC K3500 Sierra SLT 1998
GMC K3500 Sierra SLT 1999
GMC K3500 Sierra SLT 2000
GMC K3500 Sierra SLX 1992
GMC K3500 Sierra SLX 1993