Distributor Module: 74-81 GM various V8 (DELCO)This is a genuine Distributor module for the 74 81 era vehicles as shown & listed for the 74 90 era vehicles as listed below MAINLY used on GM V8 cars found in Australia from 74 82 era.. check Image .. 4 contacts.. 3 of 1 size and one smaller.. image is correct so check yours before ordering. Modules Electrical parts are NOT Returnable. Nag Session: Remember to put the silicone grease on the underside FIRST when fitting a new one. its in the pack with