draggindak
+1y
need some help. i recently bought 2 smc 2 way valves for the rear of my truck. i lay it out at night, and when i come back the next morning my rearend is aired up. can anyone tell me why? ive got them hooked up like the guys said. i use to have mac 2 way valves, but apparently nobody sells them anymore, or at least no one i could find. and these. but the mac valves i had never did this.