I think it would be very hard to get the paint to stick. You would have to scuff the surface well, use a good primer then a quality paint. In the end it will probably not look too hot. Best if you took it apart and painted each piece. I would replace what I could and leave the rest alone....or just just leave it alone..
B.O.
Former Ram/Cummins owner
2015 Silverado 3500 D/A DRW
Yup I'm a fanboy!
2016 Cedar Creek 36CKTS