One pulley is bent. Could be simple, may not be, probably has to be opened up. The item “OEM John Deere GS45 Belt Drive Walk Behind Transmission Spicer PARTS” is in sale since Tuesday, June 1, 2021. This item is in the category “Home & Garden\Yard, Garden & Outdoor Living\Lawn Mowers, Parts & Accessories\Lawn Mower Parts”. The seller is “usedsmallenginedepot” and is located in Apex, North Carolina. This item can be shipped to United States.