I need new tires and I would like to put on some different wheels, even go up to a 17" would be fun. I'm not worried about the tire size as I can get whatever diameter I need to keep from rubbing the fenders or frame.

Do any of you know what other GM car or truck wheels will fit okay on the All Wheel Drive models? (the 5 lug bolt 15" not the 6 lug 16" that the new ones have now) I don't want to put on aftermarket wheels if I can use some nice GM production ones from another model car or truck.

To the best of my knowledge---
Astro/Safari's have a 5 on 5 bolt pattern for wheels, here is a list of other vehicles that do as well to the best of my knowledge. If anybody knows of others, feel free to add them to the list.
71-96 Buick SeSabre
77-78 Buick Riviera
71-96 Buick Roadmaster
68-94 Cadillac Brougham/Calias
68-88 Cadillac DeVille
77-79 Cadillac Seville
71-76 Chevy Belair/Biscayne
71-96 Chevy Caprice (HD)
94-96 Chevy Impala SS
88-98 Chevy/GMC 1/2 ton 2WD trucks
94-99 Chevy Suburban 2WD
95-99 Chevy Tahoe/Yukon 2WD
98-02 Chevy Savanna/Express vans
73-78 Ford Galaxie/Futura
99-01 Jeep Grand Cherokee
73-77 Mercury Cougar XR

Thanks, I've seen the list before and it's a great contribution to everyone! I was not sure if the late model AWD vans had the same hub and bolt size/patterns as the pre-95 models.
Thanks a lot!