Craftsman Yard-Man Lawn Tractor Steering Shaft Support 731-04945 5.00 x 3.50 x 3.50 Genuine OEM Replacement Fits Craftsman MTD Troybilt Yard-Man Kmart. This is a Genuine OEM Craftsman part. This steering shaft support (part number 731-04945) is for lawn tractors. Steering shaft support 731-04945 supports the bottom of the steering shaft. Wear work gloves to protect your hands when installing this pa... - Craftsman Yard-Man Lawn Tractor Steering Shaft Support 731-04945 5.00 x 3.50 x 3.50 Genuine OEM Replacement Fits Craftsman MTD Troybilt Yard-Man Kmart.