Traxxas Shock tower, rear, extreme heavy duty, gray (for use with #9080 upgrade kit) #9039-GRAY

Traxxas Shock caps, aluminum (gray-anodized), GT-Maxx®, shocks (4) #8964-GRAY

Traxxas Housing, differential (front/rear), 6061-T6 aluminum (gray-anodized) #7780-GRAY

Traxxas CASTER BLOCKS GRAY L&R #9032-GRAY

Traxxas Spring retainer (adjuster), gray-anodized aluminum, GT-Maxx® shocks (4) (assembled with o-ring #8968-GRAY

Traxxas WHEEL HUB 17MM SPLINED GRAY #8654-GRAY