Fluidampr 2001+ GM/Chevy 6.6L Duramax Harmonic Balancer Friction Washer - 3pc - 760131-FW03

When using Fluidampr Duramax High Strength Bolt Kit (#300010), Fluidampr recommends replacing the friction washer each time damper is removed. 0.010" thick, diamond impregnated. 3pc pack.
Installation Instructions