Plug Barrel Bushings for Caliber Trucks are designed to remove lateral play from the truck by filling the gaps between the hanger and the kingpin. Resulting in a quicker return to center, increased responsiveness, and a more direct turning feel over a traditional barrel bushing. Now available in 5 different durometers in our classic HPF formula!

HPF Formula:
85a – Yellow
87a – Purple
90a – Red
93a – Green
95a – Glow in the Dark