Looking for a new socket for ashtray lamp

Looking for a replacement lamp socket for this center console wiring harness. This is the bulb that lights up the shifter indicator on 66-76 a body center console. The hole is .625” and mine works but will not stay in the hole with out sealer or a clip. Anyone know where to get a new pigtail? Nobody is making the 66’ center console wiring harness yet. Thanks. Tried Napa and all the auto parts stores near me. I can not get eBay or amazon to show me what I want. Help!