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Starting at $20.95, AutoBuffy stocks 1 steering idler arm bushings from Mevotech Supreme. The idler arm bushing is a small rubber or polyurethane sleeve that cushions the pivot point of the idler arm, keeping the steering linkage properly aligned. When it wears out, the idler arm develops play that translates directly into vague, wandering steering and accelerated tire wear.
The most important choice is bushing material — rubber OE-replacement bushings restore factory feel and noise isolation, while polyurethane bushings offer greater longevity and sharper steering response at the cost of slightly more road noise. You should also confirm whether your American Motors Javelin uses a single center-mounted idler arm or a dual-idler setup, and buy the correct position bushing accordingly.
| Option | Best for | What you get |
|---|---|---|
| OE Rubber Replacement | Daily drivers wanting factory ride quality and quiet steering | Original-spec rubber compound, OEM-equivalent compliance, and good noise/vibration damping |
| Performance Polyurethane | Enthusiasts, tow vehicles, or high-mileage trucks needing longer service life | Firmer, more durable bushing with tighter steering precision and resistance to oil and heat degradation |
| Greaseable Bushing | Off-road use or vehicles in wet/muddy environments | Zerk fitting allows periodic lubrication to extend service intervals and resist contamination-related wear |
| Complete Idler Arm with Bushing Pre-Installed | Vehicles where the idler arm itself is also worn or loose | New arm and bushing as one unit, eliminating the need to press the bushing in and ensuring proper fit from the start |
The idler arm must be unbolted from the frame and disconnected from the center link before the old bushing can be pressed or driven out. The new bushing is pressed in until fully seated, then the arm is reinstalled and all fasteners are torqued to the manufacturer's specification. A wheel alignment should be performed immediately after the repair to verify front-end geometry.