KW AV8R wrote:
Just spit-ballin here, but any chance the 'AB' is the euro 2-light assembly?
It's definately not the 2 light export version. I even found it listed with an AC at
http://www.justforjeeps.com/lightbar.html
I've found that the last two letters Ax indicate the year manufactured. For example, assume AB = 2004 and AC = 2005. You probably won't' have a choice when ordering. You give them the part number and they sell you what the have in stock, or can order, whether it is AB or AC.
If there is a difference, I could see how an issue would come up if you were trying to repair an existing light bar, but since you're doing a completely new installation, you shouldn't have anything to worry about.