Easy and quick fix
If you are having a hard "clunk" every time you pull away from a dead stop, this is probably the cause. The unit can be rebuilt, but by the time you buy all of the necessary parts and spend the time, this is a much better option. I replaced mine about 3 weeks ago and it has made a huge difference in towing my boat. Took me about 45 minutes to replace the entire assembly, due to having to solder the wire on the solenoid. Bleeding the brakes after you finish is actually the worst part of the whole deal.
Reviewed by: Scott from Anderson, SC.