1957 front turn signal housing disassembly

[57Byrd]

The bulb holder in the front turn signal housing is badly corroded and needs replacement. How is it possible to remove the holder from the housing so it can be replaced with a new one? I'm a brand new member, many thanks for any help!

 

[BarretHC1]

I replaced the whole assembly and pig tail/wiring harness. I had to drop the front bumper, and then I installed a new wiring harness into the assembly by twisting and turning, It eventually was pushed in. It may have to be bent, and then 'fixed' to put the bulb back in?