Review of Demco Brake Actuator - Hydraulic Brake Actuator - DM8102511 Video

The spacing will depend on the axle diameter and on which particular spring hanger kit you use. If you have a 6000 lb 3 inch diameter axle, and you're using the #APT5 hanger kit which includes 7-3/4 inch equalizers and 2-5/8 inch shackle straps…

Your trailer must have free backing brakes if you have never used the surge brake actuating coupler reverse lockout. If you did not have free backing brakes, your brakes would most likely brake even if they didn't lock up when you back up because…

You will want to remove your spring hangers and then weld them in a position that allows the shackles to hang properly. On a spring that is 26 inches eye to eye on center and a single axle trailer you will want the hangers to be up to 1/2 inch less…

The only way to turn a surge brake actuator "off" is to engage a lockout on the actuator. Some actuators have manual lockouts, others have electric lockouts, and some have no way to lock out the actuator. Typically, free-backing brakes are…

The difference in tire diameter will be an additional 2-1/2 inches going from the 225/75-15 which measure 28.4 to the 235/80-16 which measure 30.9 inches. As a general rule of thumb the minimum safe distance between front and rear tires on the same…

If you spread tandem axles to far apart you end up causing tire scrubbing which means that when you are making tight turns the axle with less weight on it will be skidding around on the pavement which cause premature tire wear. You want to have the…

Thank you for providing the specs for the suspension components that you already have. Correct hanger spacing really depends on the components being used such as springs, hangers and equalizers. Most of the hanger spacing dimensions that we have are…

Well shackle length is mainly based on the height difference between the front and rear hangers. The rear hanger normally doesn't hang as low as the front so that the shackle can offset the difference and add the ability to move. What is the…

For your application I recommend checking out the Shackle Strap #TRSL225 which is 2-1/4" apart for the bolt holes, has an overall length of 3-1/2" and a 1-1/4" width like what you're looking for. We don't carry the TPU5212 kit…

I was able to go out to our warehouse and measure the Demco Hydraulic Actuator #DM72VR for you. I found that the center of the mounting hole was 1-5/16 inches away from the master cylinder, so I recommend drilling the center of your mounting hole at…

The Dexter DX7.5L A-60 Brake Actuator w Electric Lockout part #DX29FR for disc brakes and part #DX27FR for drum brakes use 1/2" diameter mounting hardware. We have used both grade 5 and grade 8 bolts when doing installations of them but the…

Yes, to install the Dexter Zinc-Plated Brake Actuator #099-175-20 you will need to drill holes that will line up with the mounting holes on the actuator.