What is the part number and where can I get them for the grommets on the rear sway bar for a 85 Barth Regal with P30 chassis?

IPD used to sell stiffer vinyl ones, but their line has been bought out by another company. Roadmaster, I think.

I like them on my tag chassis, but they seemed to increase oversteer a little on my 27 ft P30. Wasn't bad to me, but some folks don't like that.

I have not yet ordered from them but... partsgeek.com or more specifically www.partsgeek.com/ymm/1984/che.../p30/suspension.html has exactly what you are looking for. I will be ordering some for my 1984 28ft Regal soon. Good luck.