If you want to keep the factory front mechanical brakes we have 3 lift kits for you:
3" Spindle Lift Part# 6233-3LD (will accept up to 20x10x10)
http://www.jakesliftkits.com/product.asp?sku=6233-3LD
6" Spindle Lift Part# 6233 (will accept up to 22x11x10)
http://www.jakesliftkits.com/product.asp?sku=6233
6" Long Travel Lift Part# 7057 (will accept up to 25x11x12)
http://www.jakesliftkits.com/product.asp?sku=7057