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Jeffrey Groat says his 1981 Peterbilt 359 extended

Overdrive Staff

Apr 20, 2011

Jeffrey Groat says his 1981 Peterbilt 359 extended hood is a “simple classic working Pete.” The truck is equipped with a 450-hp Caterpillar and a 15-speed transmission, and Groat does severe duty work locally.

Truck Engine Roadside Repair Adobe Stock 359839134

EPA to end DEF derates, roll back emissions warranty reg

Instead of the truck derating toward shutdown in steps with a DEF fault, the rule proposes that the driver or machine operator would receive an audible or visible alert. The engine would operate normally. At once, longer required manufacturer warranties of emissions equipment will be eliminated, too.

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'Mint Condition': 2010 Pete 389 built with old-school touch

Shiny Engine

Diesel shops, owners, fleets pardoned by Trump after emissions ‘delete’ convictions

Screenshot 2026 07 06 At 3 17 04 Pm

TQL to argue before U.S. Court of Appeals over broker transparency

Trucks Highway Adobe Stock 1199447284

Broker transparency, AEBs, EPA emissions: When new rulemakings are expected

Small Fleet Champ: Last month to enter! And: Meet Mike Singleton, chroncling life OTR

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