rim spacing...

obviously firebirds have 5 lug wheels. whats the spacing or demension of the wheels so if i were to buy rims nad throw them on the car, what would be the spacing i would be looking for?!

5x100
5x114.3
5x120
5x112
5x135
5x100 et35
5x114.3 et35


OR maybe theres more sizes out there?

rear wheel drive. 89 firebird

Well to tell you the truth I've never been a Rim's guy myself but as far as I know if your looking at a universal style rim the company already has your dimensions and makes there Custom rims for your ofset of you could buy a adapter off of ebay or other site from what I hear about Third Gen's This would give you the more commenly used 4th gen ofset.
John

Im a fan of ROH rims, check out www.groupawheels.com these guys really know what they are doing and have special fitments for just about any car. They also do alot of custom work. If you need rubber they can hook you up with some good packages too. I got 18's for my 94 with proxy t1-s wrapped around them. I didn't know anything about rims or tires till i contacted them, good people, great customer support.