You guys are the best, thanks for the quick response! I don't know if this option came on all comanches but i have the load sensing valve that sits on the underside of the bed. When I pulled off my sway bar I disconected the arm so that I wouldn't cut power to the rear brakes when I nose dive. Am I best off removing that and replacing with the zj prop valve and throwing in a 97-01 xj brake booster?