There are a few factors that you need to take into account when choosing the right jack for your truck. The size of the jack and the weight of your truck will both affect which jack stand is best for you. Generally, a 2-inch-diameter jack will be sufficient to lift trucks up to 10,000 pounds, while a 3-inch-diameter jack can handle trucks up to 12,000 pounds. However, if your truck weighs more than 12,000 pounds or is unusually heavy, you may need a stronger or larger jack.