Replacing the Hood Insulator Part of the Rig Review: What worked and what didn't - Sep 2021? Rig Review. TL;DR - Just a little bit of maintenance, replacing the insulator under the hood. Easy and done. Ready to protect the paint for another bunch-o-thousand miles. Ready to protect the paint for another bunch-o-thousand miles. Published in Rig Review Section and The Long Way; experienced on 2021-09-12 hood insulator Previous Post Verifying Offline Maps Prior to Departure Next Post Rear Axle Housing is Cracked