Can Demco DM78CV Brake Actuator Fit A Big Tex 70TV Tandem Axle Trailer?
Updated 08/15/2025 | Published 07/21/2025 >
Question:
Will this work with the drum brakes on my dual axle Big Tex 70TV? – Mario
asked by: Mario
Expert Reply:
Hey Mario, it might work. That Big Tex trailer seems to have electric drum brakes from the factory, and the coupler seems to be channel mount and not a standard tongue mount.
If you swapped to hydraulic brakes and you have a 3" wide tongue, then yes you can install the Demco Drum Brake Actuator # DM78CV. You'll just need to doublecheck what I mentioned previously.
This actuator is rated for 8,600 lbs and works great with tandem axle hydraulic drum brake setups. One last thing to do is make sure your coupler fits a 2" ball.
If this doesn't make sense, feel free to provide some more info in a comment on this page, or send in a picture of your setup.
Product Page this Question was Asked From
Demco DA86 Brake Actuator for Disc Brakes w/ Lockout, Solenoid, and Cover - 2" Ball - 8,600 lbs
- Brake Actuator
- Surge Brake Actuator
- Boat Trailer
- Travel Trailer
- Utility Trailer
- Bolt-On
- 8600 lbs GTW
- 2 Inch Ball Coupler
- 3 Inch Channel Tongue
- Disc Brakes
- Manual Lockout
- Demco
more information >
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Andrew N.
8/15/2025
Hey Mario, did you get a chance to check if your Big Tex trailer has a 3 wide tongue and if the coupler fits a 2 ball? I'm here to help if you need any more guidance!