Update: The vendor stated the socket contact insert sold from there catalog is for the OEM style housing...ONLY. Apparently, those housings were made to allow for the offset lugs to key correctly for the bulb filaments. Coincidental the housings they sell were not made to OEM specs and are intended to be used with other aftermarket wire harnesses. As a buyer you are not aware of that. So, they suggested filing off one of the lugs and insert. Remove and reinsert if needed to achieve correct wire/filament alignment.

Only time will tell.

Last edited by Apache1; 06/25/2019 4:35 PM.