I searched, but I couldn't understand this offset or backspacing stuff for the life of me. Can someone tell me if wheels with these dimensions will fit, and also explain how to understand all of the dimensions so I don't have to keep asking for each set of wheels I find? Thanks!

Wheel Model = ROH ZS
Wheel Diameter = 17"
Wheel Width = 9.5" (rear), 8.5" (front)
Wheel Bolt Pattern = 5 x 114.3mm
Wheel Offset = 20mm (rear), 25mm (front)

 

What i did when i bought wheels for my camaro, was found a site with a fitment chart and just remembered what would fit. So i hope this helps.

Wheels that will fit your firebird.

Wheel Bolt Pattern- 5x120.7 or 5 on 4.75

Wheel offset- Typically 0 (Low Offset - RWD ( Rear Wheel Drive ) Typically 0 offset)

Lug nut- 12mmX1.5

 

Here's a diagram from the SLP catalog that might helpout. Just plug-n-play with the numbers.

For references:

The stock 16" x 8" wheels have a zero offset on the front and a positive 16mm offset on the rear.

The Ronal Firehawk wheel, also a 17" x 9.5", has a positive 10mm offset.

And yeah, the 120.65mm or 4 3/4" bolt pattern is correct.

And to help with your conversions, 25.4mm is about 1".

Using that material as guides, you should be able to figure out what you need. Happy calculating.

 

Wow, great, thanks guys. That was really helpful.

So, 114.3mm is equivalent to 4.5 inches, so I'd need a 5 x 4.75 to a 5 x 4.5 wheel adapter thats about an inch thick to make it work, correct? Like this: http://www.adaptitusa.com/index.asp?...PROD&ProdID=13