Frequently Asked Questions:
What is a D-Brake LCDB?
It is a secondary braking (or retarding)
system for trucks, motorhomes,
LCDB stands for Liquid-Cooled Disc Brake.
Where does it fit?
The D-Brake is mounted into the driveline and attaches to the rear of the automatic transmission, replacing the tailhousing.
Why would I want a D-Brake?
Using the D-Brake dramatically reduces the wear on your vehicle's brakes. Less wear means less maintenance and ultimately less long term cost.
The D-Brake increases the safety of your vehicle by giving you more braking power. Also, using the D-Brake keeps your vehicle's brakes cool in case you ever found yourself in an emergency situation.
Will the D-Brake work on my vehicle?
The D-Brake Model 350 is currently available for the Ford F-250 and F-350, 2 wheel drive, automatic transmission vehicles. It is also available for the E-series, and works on both diesel and gas models (although exhaust modifications may be necessary for gas powered vehicles). The Model 450, for the Ford E and F-450 and 550, will be released shortly, as well as a new model for the Ford gas powered Class 'A' Motor Coach. We are continually developing new models compatible with other vehicles. If you have any questions about the D-Brake’s compatibility with your vehicle, Contact Us
How does it work?
There are 2 modes of operation:
1) Every time you step on the brake pedal, the D-Brake is actuated via the brake light switch. The driver is able to adjust the level of braking by adjusting the knob on the driver control – which is mounted to the shifter lever on most vehicles.
2) There is a “Set” button, which is for downhill braking. This feature creates a “Braking Cruise Control” – the driver pushes the button at a comfortable speed, and the control system takes over. The control will maintain a steady speed within 2 MPH of the set point. It is disengaged when the driver steps on the brake or gas pedal.
Does the driveshaft need to be modified?
On most vehicles, no. On some vehicles, a shortening of the front shaft will be required.
How long does it take to install the system?
Typically 4 to 6 hours.
What does the system weigh?
The brake itself is 65 lbs.; the miscellaneous hardware is another 10 lbs. However, the weight of the OEM tailhousing and slip yoke that get replaced is about 15 lbs., so the net weight is approx. 60 lbs.
Can the system fit on gas-powered vehicles as well diesel?
Yes it can, however, exhaust system modifications may be required.
How is the D-Brake cooled?
A water pump design is integrated into the brake disc. At 60 MPH, approx. 28 GPM flows through the brake disc, carrying away the heat that is generated by the brake pads rubbing on the copper surface.
Why is copper used as a braking surface?
Copper is highly conductive, both thermally and electrically. We like to refer to it as “Thermally Transparent”. The heat from the friction material, which rubs directly on the copper, flows through the copper into the coolant.
Does the copper wear out?
The copper is expected to last about 150,000 miles, however this number varies depending on use. This copper and friction material combination is not new, and has been used in industrial applications for over 30 years.
What is the life expectancy of the brake pads?
The brake pads on the D-Brake will last approximately 75,000 miles, however this number also varies depending on use.
What is involved in changing the brake pads?
The brakes pads are designed to be easily changed. Simply pull the two pins by inserting your finger through the loop. The pads will wiggle out easily. To install the new pads, slide them into the space between the rotor and dust boot.
Does the D-Brake have any effect on ABS, or RABS?
No. The same speed sensor that we use for the cruise function, serves as a low speed cut-off. The brake will cut out at 6 MPH
How much does the D-Brake cost?
If you have any questions about the D-Brake’s price or compatibility with you your vehicle, please Contact Us
How much power does the D-Brake absorb?
The D-Brake can absorb over 100 HP (horsepower) at 50 MPH.