Decide When the Torque Converter Locks or Unlocks for Maximum
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% effectiveness (this is a manual setting and should only
be selected under light load/light power conditions, such
as highway driving).
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.
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.
is the Torq/UnLoc which acts the same as the TorqLoc but in
the third position the converter is prevented from locking
#1030395 - TorqLoc V2.1
Torque converters in the newer trucks have 2 stages: (1) a fluid
coupling occurs first when you are starting, accelerating or
pulling up a big hill, (2) when you are cruising at a constant
speed the lock up portion of the converter is engaged and 100%
of each rpm is transferred through the converter, just like
a standard clutch. With the TorqLoc toggle switch in the first
position the lock up clutch is engaged and 100% of the rpm is
transferred, transmission temperatures remain low and engine
retarders work at 100%. This position is manual and should only
be used manually just like a gear would be selected. Factory
convertor (and aftermarket) clutch and drive clutch designs
have torque limitations and this function should only be used
under light load and light power conditions. A adjustable pressure
switch is available to disengage the lock up clutch once a set
boost pressure or load has been achieved. The second position
converts the application back to stock operation or it can be
wired to unloc the convertor. The third position is an AutoLoc
position that only maintains a lock up when the stock computer
has already established a circuit. This position can be safely
selected for retarding or under heavy power and load applications.
This position can be selected for every day driving in all situations.
The TorqLoc also has an overdrive inverter option to have the
transmission start in drive. The lock up can be set to hold
on untill 5-10 MPH if you have 2nd gear lock up for slow driving
This product CAN NOT ship to California due to CARB regulations.