Oregon 73-020 Snow Thrower Skid Replaces MTD 784-5038B And10-1/4-Inch Length By 3-1/2-Inch Wide Replaces MTD part number 784-5038B Use on 1988 and 1989 20-inch and 26-inch snowthrowers, models 225 and 590 7/16-inch by 2-inch slots, center to center spacing Will also fit Toro large frame snowblowers For MTD use with our 73-024 wear bar