Hi again Jan -
I went to my Pontiac dealer duing lunch and they said that they were discontinued after all. He gave me these part numbers: 12356760 and 12396759. My old lower hose is stamped: 112888. The old upper is stamped: 092888. When I got home, I tried GMpartsdirect.com and newgmparts.com and neither showed stock.
Gates still lists them and I can special order them: 426122957 upper and 426122958 lower. Advance Auto parts online will take about 5 days to deliver them and it will cost me $10+ in shipping. Not impressive.
So I have a local independent auto parts store looking into price and availability for a special order from Gates.
At NAPA, the counter girl brought back some hoses that weren't even close. She is not bad looking, but not the brightest when it comes to what I need her for. So when I got home, I went to the NAPA web site and looked up these: NBH9592 upper and NBH9593 lower. The picture of the upper hose looks right. The picture of the lower hose does not look completely accurate. So that's where I'm at right now.
Best, Bob