Poor engineering but woks
When in the first step it tells you to pull everything apart and wire everything up to see if it functions make sure you do that. The motors were wired possibly backwards or on the wrong side of the lowering arms swapping things around I made it work but it's still not perfect. now the motors are on the front side of the lowering arm but it to goes in the correct direction. passenger side rear door and the driver side rear door sensors had to be swapped. they were labeled wrong.
Somewhat poor design w/ regard to installation
A little about me - licensed professional mechanical engineer (extensive general automotive repair experience). The electrical systems were easy to install (decent instructions). But the mounting of brackets onto the truck was flawed. There wasnt adequate space to clip in the electrical connection for the motors and it had to be FORCED into place. The running boards do work...but really poor design bestop. Also, you need to oil it after every wash or heavy rain (or it squeaks).
The boards are amazing, they mounted easily, the wiring was easy to route and even the wireless sensors were easy to install. One of the sensors did not work after installation the down side was trying to reach someone in technical service. After numerous calls and messages left four days later I was able to reach a person. A simple battery replacement fixed the issue. Other than the poor support the boards are wonderful!