Looking for a part number for ac pressure switch. 92 Mustang LX 5.0. I replaced all ac lines and receiver drier with new ones by 4 seasons and added pag oil to convert to 134. My old pressure switch was bad so I couldnt reset it for the different pressure. My problem is that every new switch I can find is either bigger or smaller and wont thread into the receiver drier. Has anybody had this problem and does anybody know a part number for the correct switch? Thanks in advance!