Just bought it Sat., $23,250 after rebate, with hardtop and softtop. I will spend most of my offroad in sand and logging roads. I want to use the largest tires possible. Are 37's too big and heavy without modifying the axles. I know that I will need to regear to maybe 5.13s but don't want to get into the axles(trusses, gussets, chromalloy, etc.) What are your suggestions for tires and lift kits?