How To Tell The Difference From Right and Left Electric Brake Assemblies  

The left side is the driver side, right side is passenger side. On a trailer brake assembly like #23-105 the arm that the magnet is on points to the front of the trailer and the magnet always will be on the bottom. I have included a picture that…

Since the trailer was off of the ground it would not take much voltage to stop the wheels from spinning so they may be getting power but they may not be getting enough power due to a short or wiring issue. But 9 times out of 10 weak trailer brakes…

If you look at the backs of the brake assemblies there should be a hole where the magnet wires come out and a little opaque plastic strap. So if you are looking at the back of the assembly and those items are on the left then it is the left side…

It sounds like the ground connection often in the mounting hardware of your lights is not connected well. This ground needs to be bare metal to metal and free of all corrosion and debris. If with a clean ground you still are not getting the desired…

Traditionally, trailer manufacturers did not use electric brakes on boat trailers because the brake magnet wiring and trailer wiring did not always have the best insulation or water protection. These days, more and more manufacturers are using…

Damage wouldn't necessarily occur but the braking power would be drastically diminished. You would need get the correct side assembly on your trailer axle.

For your 2009 Haulmark trailer, I recommend the Replacement Hasp for Polar Cam-Action Latch Kits - 1" Wide - Zinc-Plated Steel #158-101 with bolt hole measurements of 4-1/4 inches on center or the Replacement Hasp for Polar Cam-Action Latch Kit…

According to our FAQ on slipper springs, linked for referenced, the torque specs are as follows: Torque Ratings 1/2 inch Bolts: 45 ft/lbs - 70 ft/lbs 9/16 inch Bolts: 65 ft/lbs - 95 ft/lbs 5/8 inch Bolts: 100 ft/lbs - 120 ft/lbs The Replacement…

If one set of brake assemblies is on the wrong side of the axle, it will lead to diminished braking performance and premature brake wear. Is it possible that the axle was removed at one time and reinstalled incorrectly? If you look at the photo I…

Brake assemblies are definitely side specific. If you put the wrong brake assembly on the wrong side of the trailer, the brakes won't work correctly, and could cause the trailer to jackknife. Brake Drums like the #AKHD-655-6-G-K you'd…

The Hopkins Tow Doctor, part #HM50928 is used to test a trailer's brake and light wiring. It shows if there is a short circuit, overloaded circuit or low battery. You'll need to use a 12 volt or higher powered battery to correctly output a…

The spring hanger placement is going to be determined by your axle spacing. For example, if your axles are spaced 33 inches apart, as shown in the attached diagram, a 7K axle slipper spring, like #e74SR, requires a distance of 28-1/2 inches between…