Had two previous brakes. Invisibrake and forget the first one. It was useless as built. I had to completely change how it operated on my H3.
Our new Pickup is pulled with the ReadyBrakes and I can't be happier. No worries about run down batteries making the brake uselss. I have a charge line anyway.
H/R Endeavor 2008
Ford F150 toad >Full Timers
Certified Senior Electronic Technician, Telecommunications Engineer, Telecommunications repair Service Center Owner, Original owner HR 2008