These are Bilstein replacement bushings for the lower front shock mounts for their 4600 and 5100 series shocks for the Tacoma, 4Runner, FJ Cruiser. Not for Tundra. You will press-out the existing bushings with a hydraulic press and press these in. Sold individually.
One Bilstein lower front shock mount bushing, vulcanized rubber/steel
Shock Bushing Outside Diameter (in): 1.562 in.
Shock Bushing Inside Diameter (in): 0.563 in.
Bushing Length (in): 1.250 in.