The nbs Escalade racks are the same as the nnbs Escalade/Denali racks. The difference is the gaskets but the end caps are the same.
---------- Post added at 06:43 AM ---------- Previous post was at 06:37 AM ----------
Bobby, send me a pic of the end caps you have now. I can't believe the ones you have don't work. We took off a couple of mine and tried on some off my buddys 09 Denali and they are the same. The difference in the racks from nbs to nnbs is the gasket between the rails and the roof of the truck..
Remember, the longer caps go towards the front of the truck, shorter towards the rear..