Join Date: Sep 2007
Location: Orchard Park, NY
From what others have posted, with the Rock Krawler kit, youll only gain about 2 inches of lift or so. Not sure why they advertise 3.5 inches. With those 20x9 wheels you in theory should be able to run a tire size thats equivalent to around a 275/55R20 (31.9 inches tall by 10.8 inches wide) or 275/50R20 (30.9 inches tall by 10.8 inches wide). However, the problem you would run into is hitting the upper ball joint bolt since the wheels dont stick out that far at all due to the back spacing. The only thing I can really recommend is keeping the tire height a little lower and/or trimming the ball joint bolt for clearance with the taller tire. Any tire that is around 30 inches tall will clear no problem but then it wont fill out the wheel well. Looks like you might have to do some test fitting if possible.
2007 4.7 Liter XK | Front OME MD Springs w/Superlift Preload Spacer | Rear 4" Superlift Springs | Bilstein 5125 Rear Shocks | JBA UCA's | Rusty's Rear Adjustable Track Bar | Black Rock 997 Wheels | Fred Goeske 1/4 Inch Wheel Spacers | 305/70R17 Goodyear Wrangler MT/R w/Kevlar | Airflow Snorkel | Flowmaster 40 Series Muffler | Superchips Flashpaq | Mopar Skids | 4xGuard Belly Guard | American Rebel Rear Diff Cover | Rear Powertrax No-Slip | Front E-Locker | Rear Heat/AC Delete