I put on my rear disks when I did my axle swap the other weekend on my burb. My 3/4ton m/c that i put on a year ago and my stock prop valve isn't going to work. The way it is now I'm getting about 70% - 80% of my brake fluid going directly to the rear brakes. What I'm wondering is, I've heard rumors that I can take off my m/c and prop valve and replace them with a m/c(which has built in prop valve)out of an 86+ S10. Anyone ever do this or heard of it being fesible?