As I understand it, this is a check valve that was made for only one year (1970). It doesn't have the right angle nipple on it. It comes straight out from the brake booster. I want to buy one from local Dodge dealer but they are asking for the Part #. They only can look up part numbers back to 1987. Anyone know what the part # might be? I have been searching high and low and can't find it. I found a used check valve that looks like it is correct for $145 on e-bay. I thought that was a bit steep. Anyway, thanks for your help.