I'm a newbie to both this forum and working on trucks, but I have to agree with Iron Clad. NAPA, in addition to having several parts available, also seems to have more than a couple folks behind the counter who are able and, more importantly, willing to give me sage advice and guidence. You know, for those few things that I can't learn quickly on here.
Classic Parts has also been prompt with their deliveries and competitive with their prices.
I've found a number of parts at Brothers that I would like to purchase as well. They are having a pretty good sale through the end of April. However, it took a good 2 weeks or so just to get their catalog, so I'm not holding out much hope for quick parts delivery. Has anyone had better luck with them?