• “WS” – 1982-1992 Camaro – 12.7:1 ratio (just like your Z/28, this may be the box that you Z originally had. Looks like this came with cars that originally came with 15 in wheels, it has 35* of travel)
• “XH” – 1985-1992 Camaro – 12.7:1 ratio (this box was also installed on Z/28’s and other high performance Camaros with 16in whells, it has slightly more steering effort required than the WS box.), has 32* of travel
• “WN” – 1982-1985 Camaro – 14.1 ratio
• “WP” – 1982-1985 Camaro – 13:1-15:1 variable ratio (used in Berlinetta’s, least steering effort required of all third gen. Camaro steering boxes)
• “JL” – 1986-1992 Camaro – 14.1 ratio (base Camaro steering box)

Am I missing any? Any one know the pontiac model breakdown?


So I currently have the "XH" box in my 91 RS (My RS came from the factory with 16in wheels, but I assume the box is stock cause everthing else so far has been), So the "WS" steering box I scored at the junk Yard for 25 bux is better (from a pontiac that had the WS6 package, LO3)? I already have the 36 mm Hollow and 24mm sways and a wonderbar installed. SFCs are in.
Oh yeah, do I need to get an aligment after I swap the steering box?

 

I'm bookmarking this page. People have been guessing forever on how to id these boxes.

To address your question, it never hurts to get it checked. I'm not sure how it could change your alignment(unless you suspect it from something you might have done). Shops 'round here won't charge you if they don't change anything. If it's off and they do charge you, you needed it anyway.