Do you have to a cdl drive truck with gross vehicle wheight over 260001 pounds even if never hall that much weight?

No. A CDL is not required to drive a truck with a gross vehicle weight (GVW) over 26,000 pounds if the truck is not carrying more than 10,000 pounds of cargo. This exemption is known as the "agricultural exemption" and it applies to farmers and other agricultural workers who use trucks for agricultural purposes.