The Prothane cab mount bushing for 1981–1991 GM Crew cab 2/4wd is a body/subframe mount supplied in black to replace the factory cab mount. Matched to the listed model years and driveline configurations, this part restores the intended cushion between cab and frame when servicing or renewing cab mounts on those GM Crew cab applications.
Prothane 81-91 GM Crew 2/4wd Cab Mount - Black