Is a Chevy 2500 ton and quarter pickup?

No, a Chevy 2500 is not a "ton and a quarter" pickup. The "2500" refers to its weight class, indicating it's a heavy-duty truck capable of hauling significantly more than a 1/4-ton (which would be a light-duty truck like a 1500 series). While the exact weight capacity varies by model year and configuration, a 2500 is substantially heavier.