The Rugged propeller shafts are designed to act as a direct replacement for the OEM shafts. Forged from heat treated carbon steel, the shafts are powder coated in black for extreme durability. Designed to be vibration free, the shafts have a long service life. The propeller shafts are fitted with greased heavy duty u-joints that are replaceable if needed. Rugged stands behind every shaft, backing them with a 1 year limited warranty.