I have a Rampage with a 2.5 hybrid motor that I've had for about 12 years. I put Caravan front brakes and a 24mm MC in it, while leaving the stock rear drums. The problem I have is the load-regulated proportioning valve in the back. It makes the pedal really spongy and I can't make the brakes lock up at all. This can't be the way these things are supposed to work. And yes I did bleed them thoroughly. Does anyone else out there have this problem?