i have a brake controller pluged in to my truck on my 01 LB7 and the trailor breaks were locking up with it turned all the way down when i hit the brakes so i just unpluged the controller and the brakes are locking up even harder how than before. is there a something on the truck that have has the trailor brakes kicking in? i think the controller is a cheapey im going to buy a better one before tractor pulling season. thanks

Sounds like the trailer is wired wrong, if your truck is factory wired, check wire locations per the diagram on the plug cover...If you got a direct plug in controler you also could have gotten the wrong harness.