I finally had a chance to pull off a wheel to check the rotor runout and it was out .020" with hot spots.

I replaced the UFP actuator with back up solenoid about a year ago because it seemed like the brakes were not working well and it always seemed to have air in the system. I also noticed that one wheel had more brake dust on it and was always warmer then the other. I thought it was because the other caliper had air in it. Should have recognized that their in series and that if one had air they would both function the same. Unfortunately I did not and replaced both calipers. The brakes work good but the bouncing when driving unloaded down the ramp was still very bad.

When I first got the boat I was 2 weeks out from picking up my new truck and friend towed me out to the lake with his older Chevy. It only had a 4 pin connector and I did not think it would cause a problem. I now think the 5th pin was for the back up lights and solenoid. So it might have overheated the brakes made the caliper stick which took out the rotor.


Now I have to replace the rotors and check the back up solenoid. Any how to info would be greatly appreciated. It has the Vault system and I thought it was a 10" rotor but my supplier lists a 9.75" X .75" or 10.25" X .950". It measures .75" thick so I guess its the 9.75. Thanks for all of the help.