Very well said Supercuda , unfortunately your info generally falls on deaf ears in these forums when it comes to these brake problems/questions/applications/modifications threads...


IMHO that's a nice Duster the OP has, if it was mine, I'd be outfitting it with a rear disc set-up, sized, based on what caliper volume I have upfront, then it would be "OK" to ditch the PV valve, otherwise if your going to keep the antiquated rear drums, get your PV replaced with a properly functioning unit...