O’Connor GMC hosts the fifth annual Squarebodies of Maine All Truck Show on Saturday, July 11, 2026, from 10 a.m. to 2 p.m. at its Riverside Drive location in Augusta, Maine. The event welcomes all years, makes and models of trucks. Registration costs $10 per truck, and spectators attend free. Awards will be presented to the top five trucks. The show features vendor row, food and drink, and music for the whole family.
