Radius Rod Bushing (Rear/Inner) – 251-407-175 The 251-407-175 is a staple component for refreshing a high-mileage Vanagon front suspension. These bushings are under constant tension, and over time, the rubber can compress or oil-soak, leading to a "clunk" when the vehicle shifts weight. Because the radius rod is a primary structural link, ensuring these inner bushings are pliable and intact is essential for maintaining a safe, predictable ride. This part is a direct factory replacement and is compatible with the standard steel spacer sleeves and washers used in the 1980–1991 suspension assembly. It is an "each" listing, so be sure to order the correct quantity for a full axle refresh. Detailed Vehicle Compatibility VW Vanagon (2WD): 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991 VW Vanagon Syncro (4WD): 1986, 1987, 1988, 1989, 1990, 1991 Product Highlights & Features OEM Specification: Matches original VW dimensions for a seamless fit onto the 18mm radius rod shaft. High-Damping Rubber: Specifically formulated to reduce road noise and vibration transfer from the suspension into the van's cabin. Interchangeable Sides: The same part number is used for both the driver and passenger side inner positions. Technical Specifications Part Number: 251-407-175 (Interchange: 251407175) Position: Radius Rod, Rearward/Inner (Chassis Side) Quantity per Van: 2 Required Material: Heavy-Duty Automotive Rubber Installation & Maintenance Tips The "Sandwich" Assembly: This bushing sits on the side of the chassis bracket closest to the rear of the van. Ensure the Radius Rod Washer is oriented correctly to provide a flat mating surface for the rubber. Check the Sleeve: The Radius Rod Spacer Sleeve (251-407-097) passes through the center of this bushing. If the sleeve is rusted or pitted, it will act like sandpaper on the new rubber; always replace damaged sleeves. Torque Sequence: Final tightening of the radius rod nut should be performed with the vehicle's full weight on its wheels (at ride height) to prevent pre-loading the rubber and causing premature failure. 251407175 1140201100
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