Hi everyone, I've got a 70's Price Pfister bath faucet that won't stop dripping(hot side). This faucet has 3 identical handles/knobs for the hot, cold & shower diverter, I'm sure some of you seen this model that I'm talking about. I've replaced the whole stem, washer & seat inside the wall & still it is dripping hot water fast...(like the old stem was doing) I don't know what else to do besides ripping out the tile wall to replace the whole unit.

help