RCD has worked with Bilstein to provide an alternative to strut spacers that do not improve performance. The RCD front leveling replacement struts for your Toyota Tundra increase available travel thereby increasing not only ride quality but handling and performance. The factory coils are retained. There are multiple snap ring grooves to adjust the ride height from stock, 1.25" or up to 2". The units are zinc, silver finished. Sold individually. Order quantity of 2. Rear Bilstein shocks to match are available and sold separately.