Replacement Brake Kit Options for Demco 40716-15 Brake Kit on a 2005 Karavan Boat Trailer  

You need to measure the inside portion of your hub drum. You need the width and depth like in the picture I attached. I can almost guarantee that you have 10 inch assemblies based on the 4 bolt mounting pattern though. So for free backing…

The issue is that with the way a surge coupler works when backing up, normally up hill, the trailer is pushing the other way which will cause the actuator to compress in sending fluid back to engage the brakes. This makes it very difficult or…

With slipper springs you will want the eyes of the spring facing the front of the trailer and the open end facing the back. I attached a help article on slipper springs for you to check out as well.

There are no U-bolts to attach the slipper part, I recommend replacing your slipper springs with double eye springs. In order to do this you need to know the weight rating of your axle as well as the length from center eye to center eye so you can…

I have a replacement option for you, but the only slipper spring we offer that is 1-3/4" wide and is 26-1/4" long is the 4-Leaf Slipper Spring w/ Open Eye End for 4,300-lb Trailer Axles - 26-1/4" Long #e33SR. Since you mentioned that…

Since trailer leaf springs tend to stretch over time the key to picking out the correct replacement is to go with one slightly shorter than what your current one measures. So a 26 inch long spring would most likely be what you need. For a 2,000 lb…

The manual lockout on your Atwood 85778 surge brake coupler is there so that you can back up the trailer without the brakes locking up on you. Yes you can safely tow your trailer with the broken manual lockout, you just have to make sure you…

In order to determine the torque rating for the lug nuts on your trailer you will need to know check out the chart I attached that shows all of the torque specs for all the trailer lugs available based on stud size, wheel material and wheel size.

Hey Richard, thanks for reaching out! The Dexter DX7.5 Drop-N-Go Brake Actuator #099-175-00 is a great option for a replacement actuator because it's a direct replacement for the common Model 60 actuators that were popular in the '90s.…

To correctly measure a leaf spring, you'll want to jack the trailer up on jack stands so the axle is hanging freely, then measure directly across from the center of one spring eye to the other, as shown in the provided diagram. The height of 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…

Yes, our Dexter leaf spring part #DX74XR is the same as the part number 072-079-00. This is a 7-leaf spring for an 8,000 lb trailer axle that is 24-7/8 inches.