Track pack, aluminum mono-tube non-adjustable. Kit consists of 2)-2175-3RT, 2-2193-5RT. All 4 shocks are valved for that rough, heavy track condition. Mono-tube design with Schrader valve for driver feel and stability. 7" shocks are 14.21" compressed and 20.15" extended, 9" shocks are 16.21" compressed and 24.15" extended.