This dang part is ruining my life and leaking coolant. I need a lower thermostat housing for my 1981 G10. I6 250 automatic. The part that bolts to the block. Mine has a heater hose hookup on the left side. The right side has 3 threaded holes for the temp sending unit, and 2 vacuum thingies ( I don't really know what the 2 vacuum hookups are for). All the ones I find have 1-2 threaded holes. I need 3. Or any advice on what the vacuum parts are and how to live without them!! Thanks in advance
Last edited by Vanzig; October 18th 2017 12:32 am.