TORQLOC

Exhaust brake usage can cause high temperatures in the automatic transmission due to torque converter slippage if a lockup device is not used. Only 10% to 80% of the retarding force is transferred through the fluid coupling of most torque converters. The BD TorqLoc commands the lock-up clutch of the torque converter to stay engaged when the BD Exhaust Brake is activated. This allows up to 100% of the retarding force to be transferred while in 3rd and 4th gear. Also, transmission oil temperatures will remain low because of little or no slippage occurring in the converter in these gears.

Additional Information

Engine Brake TorqLoc; Prevents Slippage; Prevents High Oil Temperatures; Torque Converter Lock-Up Clutch Control;

Part Type

Automatic Transmission Control Module

Product Overview

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% 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.

These additional application notes are supplied by the manufacturer and collated from multiple year ranges. Not all of these notes may apply to every year or every variant. Please contact a StreetFX agent for clarification if required.

• 12 Month Or 12000 Mile Warranty
• Ensures Retarding Force Is Being Transferred To Gears
• Ensuring 100% of the retarding force is being transferred in 3rd and 4th gears
• Maintains Lock-Up When The Exhaust Brake Is Activated
• Prevents slippage and subsequent high oil temperatures
• TorqLoc with its three position switch allows for manual command of the lock-up as well as AutoLoc and stock operations
• TorqLoc With Three Position Switch

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Product Details

Product Downloads

#	Document Type	Download
1.	Installation Instructions
2.	Catalog

Installation guides, warranty details, and other supporting documents are provided by the supplier. In some cases, these files may originate from regions outside your locale, meaning instructions, warranty procedures, and images may not fully align with your specific vehicle or region (e.g., LHD vs. RHD differences, return policies, etc.). If you need clarification, please contact a StreetFX support agent.

Reference Information