Side marker bulbs

[seerex]

I just put in a new / used fuse box from ebay wow what a diffrence everything is bright and works , only two things on the car that don't are the front passenger fender running light and the drivers rear back corner side running light . These are the side markers that are screwed in and have a lens and then a chrome piece and then the black rubber gromet. The ones that are not working on mine are very rusty and I was wondering how do the bulds come out? A twist type or a push in and twist or just a push in type < that sounded weird > . I have sprayed some cleaner on it to try and free up the bulb but still quite stuck and suggestions before I damage the marker?

[Bambikiller240]

Push in slightly and turn.