Posted by Jim_n_Tx on Friday, May 11, 2007 at 15:43:58 :
In Reply to: Thermostat Unhappiness posted by Ron M. in AB on Friday, May 11, 2007 at 13:23:48 :
You discovered a 3/4 t. WC and early M37 thermostat - replaced later by a one-piece. Either will fit and work - but that three-part one is OEM for the early engines. Both designs allow a small amount of circulation when the thermostat is closed.