Slight changes to 2008 wranglers:
 

From http://www.arifleet.com/production.html

the Jeep Wrangler 18" wheel has changed and cargo loops are being added.

* (WPB) 18” Aluminum machined wheels are no longer available for ordering
* (WPK) 18” Aluminum Machined wheels have a Job #1 of 10/15/07

* (CKT) Cargo tie-down loops have a Job #1 of 1/3/08