113-501-737A VW Rear Suspension Z-Bar Rubber Stop - Beetle & Ghia

Rear Suspension Z-Bar Rubber Stop – 111-501-737A

Improve the ride quality and suspension geometry of your classic Volkswagen with the 113-501-737A Rear Z-Bar Rubber Stop. This specialized component is designed specifically for vehicles equipped with the "Z-Bar" (compensating spring) rear suspension setup. The rubber stop acts as a buffer for the Z-Bar operating arm, preventing harsh metal-to-metal contact during suspension travel and helping to maintain the correct tension on the rear swing axle.

Over time, these rubber stops become compressed, cracked, or completely missing due to exposure to road debris and oil. A degraded stop can lead to clunking noises in the rear end and negatively affect the vehicle's camber under load. These high-quality reproductions are molded from durable, high-density rubber to match the original factory specifications for shore hardness and fitment.

Detailed Vehicle Compatibility

This rubber stop is specific to swing-axle models equipped with a factory Z-Bar continuously across these years:

VW Beetle (Standard):

• 1967, 1968

VW Karmann Ghia:

• 1967

Product Highlights & Features

• Specialized Fitment: Specifically engineered for the short-lived but critical 1967-1968 swing axle Z-Bar configuration.

• Vibration Damping: Absorbs impact energy from the suspension operating arm, reducing cabin noise and chassis stress.

• OEM Style Reproduction: Matches the original factory shape and density to ensure proper suspension preload.

• Sold Individually: Note that most vehicles require two (2) per car (one for the left side and one for the right side).

Technical Specifications

• Part Number: 113-501-737A

• Material: High-Density Black Rubber

• Location: Rear Suspension (Left or Right)

• Application: Z-Bar / Compensating Spring Operating Arm

Installation & Maintenance Tips

• Check the Z-Bar Links: While replacing these stops, inspect the Z-Bar plastic sleeves and the rubber bushings on the operating rods. If these are worn, the Z-Bar will not function correctly even with new rubber stops.

• Installation Direction: The stop fits into a specific bracket on the chassis. Ensure the mounting surface is clean of old rubber remnants and rust before pressing the new stop into place.

• Lubrication: A small amount of dish soap or rubber-safe silicone lubricant can help the stop slide into its mounting bracket more easily. Avoid using petroleum-based grease, as it will cause the rubber to swell and degrade.

• Symmetry is Key: Always replace these in pairs. If one side is compressed or missing and the other is new, the rear suspension may sit unevenly or react differently during cornering.