A 3 ton floor jack should be enough for lifting virtually any truck. Figure out your vehicle’s tonnage capacity by finding out the GVW (Gross Vehicle Weight) on the sticker in the doorjamb of the driver’s cabin. This weight is split by the majority of the trucks into the front as well as rear weights. You will also find this information in the manual of the vehicle. Ensure that the Jack is able to lift more than the greater of the 2 weights. There is no need of using a 3 ton floor jack unless you are lifting a bigger and heavier vehicle.