don b wrote:
I purchased mine about 5 years ago and I did save the box. I purchased it from GM dealer, do not remember the price but mine is an AC Delco, ACD#GT270, GM#22720375. I hope this helps, I have a 2003 National on Workhorse Chassis.
Just dropping in to say: WOW!
It just doesn't get any more helpful than that....this is one of the things that's so great about this site- there are folks like you, Don, that will take the trouble to actually dig out an old box and get the exact part number for the person asking the question.
In an effort to make a small contribution, here are live links to sources for the parts Don identified:
ACD#GT270 and
GM#22720375