A Vehicle Specific item is specifically designed for the exact measurements of your vehicle. No alterations are required.

A universal fit item is designed to fit and work with almost any vehicle. It will work with your vehicle, but may require some modifications to fit exactly.
 
Hi-Lift Spare Tire Carriers
OLYMPIC 4X4 PRODUCTS EXTENDED HEAVY-DUTY TIRE MOUNT
Replace the original tire mount on your Wrangler's tailgate. Extends spare tire beyond bumper so you can fit 32" and larger spare tires with original and after market tires.