Hi,
I am new to board and to a 68 chevelle ss. What is the paint code or color for the lower section that is blacked out. Car is grotto blue with black int and vinyl top. Also who is the best as for interior parts ie covers and door panels. thanks

The rockers on 68 SS Chevelles are all satin/semi gloss black. The best way to paint them is to use a single stage black enamel with flattener and hardener added to make a durable 60% satin.
The best interior co. that most will agree is PUI. They make door panels, carpets, seat covers, headliners, and pretty much any other vinyl interior parts.
Ground-Up, sells all the PUI products you will need to do any interior upgrade...

I second the motion on PUI. I purchased their seat covers for my 68 and they turned out great.
However, I'm not sure if they are "exact" duplication of the orignal.

Good choice on the 68. Welcome.