NOS AC oil pressure sender for cars with real gauges. The part # is 6464408, believed to be for a Chevy truck. This is an 80 Lb. sender and it should work fine on the 1968-1972 442's with Rally-Pac gauges. The only difference I see is that this threaded stud is about 3/16 inch longer than the Oldsmobile threaded stud. Otherwise exactly the same. It is marked on the top "AC" and "MADE IN USA". Around the side it is marked " 80 6464408 231 3 " Price is $195.00, includes safe insured U.S. shipping. Sorry, no pay-pal. PM me if interested