Tundraaccessories.com entry level suspension system for the 2007-Current Tundra. This system works well in most on and off-road scenarios. Our front coil-over shocks and tuned specifically to give your Tundra a great ride quality on and off the road. The ICON V.S. Series 2.5" Diameter Mono-tube rear shocks in the system are tuned to match the front coil-over shocks in every aspect and will be an incredible upgrade compared to the factory rear shocks. Recommended tire size 305/60R18, wheel 18X9 with 5" back spacing.