Buckeye,
Here's the link to a store that has dirt grip for the best price I have seen (wish I knew about this place before I paid 415.00 a
http://www.ntwonline.com/acb/showdetl.cfm?&DID=48&Product_ID=1211&CATID=10tire) .
I would advise that you stay with the stock size for a few reasons:
1. Oversize tires can void the warrenty on broken driveline components.
2. The 38.5 tire is 15.5 wide. They will wear out faster.
3. Some people have issues with the 15.5 tires rubbing off road. A body lift will correct it, but a body lift can also void warrenty iteams.
Yes the PJ's are availible for the 17 inch rim.
Carey Harkness
1998 HMCO