What's the gmc sierra wiper blades size?

Since the first model was produced in 1999 and continuing onward on to today's models, the GMC Sierra has always used a 22 inch blade for the driver's side and a 22 inch blade for the passenger's side. There is no rear wiper blade on this truck. A pair of replacement blades will cost between $15 and $40 depending on the brand and what store You buy from. I recommend not going for the cheapest You can find because they will wear out quicker and just need to be replaced again. On average You will need to replace Your wipers every 1 to 2 years. It is recommended to change them out during fall as You will likely face the heaviest usage in winter.