ATI PERFORMANCE SUPER DAMPER Harmonic Damper [OUTER DIAMETER 7.525 | WEIGHT 9 LBS | SHELL MATERIAL STEEL | HUB MATERIAL STEEL] (2014-2021 GM Truck & SUV 5.3L L83 & 6.2L L86) : COLORADOSPEED - LATE MODEL DOMESTIC (AMERICAN MUSCLE) | IMPORT (EUROPEAN | SPORT COMPACT) AUTOMOTIVE PERFORMANCE PARTS