Olds-Powered Squarebody Dually Built at Home! | 455 Rocket Revival | Peace and Grease Podcast

What do you get when you mix Midwest grit, old-school craftsmanship, and a fire-breathing 455 Oldsmobile big block? You get Justin’s 1976 GMC Crew Cab Dually, reborn from a Craigslist basket case into a ground-scraping, thunder-rolling highway bruiser. This isn’t your average squarebody story—it’s family, faith, fabrication, and full send.

We sat down with Justin Frederick to hear the wild backstory of this home-built beast: a junkyard-salvaged Rocket 455 that’s been in his family since he was 12, a DIY dually conversion using a rare JC Whitney kit, and enough sweat equity to make even the Hoonigan crew nod in approval. Every wrench turn is personal, every mile driven a legacy.