I have a 03 serria denalli, loved it so much, I bought a low miles (130000 Yukon XL. Dealer verified milage. only thing that has to be doon is the rear rottors turn (rusted from sitting)
Where can I go to review production numbers?

Hey Joe,
Try this link: http://www.gmpartsdirect.com/partsvoice/frameset.cfm

In the upper Left, select Search Parts Catalog and then choose your make and year from the available choices. I hope this is what you were looking for.

Scotty