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5.The fan is removed next. This requires a 36mm wrench (Blue Point PN YA9521) be used to twist the 36mm hex-head nut against the cranking rotation of the belt (the belt direction is different on various front drives, so you'll need to determine this for your application). Do not remove the accessory drivebelt before doing this step, as the belt will hold the water pump shaft in place while you loosen the fan nut. You should be able to remove the nut with the wrench, but if not, refer to the next photo for how to remove "stuck" fan nuts. Remove the lower shroud by taking it off its two resting tabs.