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Prothane Motion Control 18-301 Prothane Rear Control Arm Bushings

Prothane Motion Control 18-301 Prothane Rear Control Arm Bushings

$104.00
$104.00
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The Prothane Motion Control 18-301 rear control arm bushings replace mushy factory rubber with high-durometer polyurethane for precise rear axle location and predictable handling. These bushings eliminate the deflection that causes rear-end step-out during cornering and braking, giving you confidence in every maneuver.

Molded from Prothane’s premium polyurethane blend at 95A durometer. The 18-301 features a crimped inner sleeve design that prevents rotation within the control arm — a common failure point with lesser polyurethane bushings. Grease-groove channels distribute lubricant during installation for long-term squeak-free operation.

Direct-fit replacement for the rear lower control arms. Sold as a complete set with sleeves. Requires a bushing press or C-clamp for installation. Pair with Prothane front control arm bushings and sway bar bushings for a fully polyurethaned suspension that delivers immediate, predictable response.

Plant the rear end and eliminate wiggle. Installation with polyurethane-compatible grease ensures long-term noise-free operation and maximum service life from these high-performance bushings. Prothane 18-301 control arm bushings deliver precision. Order your set.
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Frequently Asked Questions

Does the Prothane control arm bushing kit fit the factory control arms on my your vehicle?

Yes, the Prothane control arm bushing kit is designed as a direct replacement for the factory rubber bushings in your your vehicle's control arms. The outer diameter matches the factory bushing shell at approximately 1.75 inches for a proper press-fit installation. These Prothane polyurethane bushings use the original control arm housing without any modifications.

What is the durometer rating on the Prothane control arm bushings for my your vehicle?

The Prothane control arm bushings for your your vehicle feature a polyurethane durometer rating of 95A on the Shore hardness scale for performance use. This is approximately 30 percent stiffer than factory rubber bushings for improved steering response. These Prothane polyurethane bushings reduce control arm deflection while maintaining enough flexibility for daily driving comfort.

Will the Prothane polyurethane bushings reduce wheel hop on my your vehicle?

Yes, the Prothane polyurethane control arm bushings significantly reduce wheel hop on your your vehicle by controlling axle and control arm movement under hard acceleration. The stiffer durometer rating of 95A prevents the excessive compliance that causes wheel hop in rubber bushings. These Prothane control arm bushings improve traction during launches on your your vehicle.

Do the Prothane control arm bushings require special tools to install on my your vehicle?

The Prothane control arm bushings require a shop press and appropriately sized installation tooling for proper installation on your your vehicle. A 12-ton press with bushing driver set is typically needed to press the old bushings out and new bushings in. These Prothane bushings also require a light coating of polyurethane-specific lubricant during installation to prevent squeaking.

How long do the Prothane control arm bushings last compared to rubber on my your vehicle?

The Prothane polyurethane control arm bushings typically last 80,000 to 100,000 miles on your your vehicle, which is roughly twice the lifespan of factory rubber bushings. The polyurethane material resists cracking and dry rot from ozone and road chemicals much better than rubber. These Prothane control arm bushings maintain their stiffness over the full service life without sagging.

Can I press the Prothane bushings into my your vehicle's factory control arms?

Yes, the Prothane bushings are designed to be pressed into your your vehicle's factory control arms using a standard shop press. The bushing outer diameter of approximately 1.75 inches matches the control arm bore within 0.002 inches for an interference fit. These Prothane control arm bushings include a steel inner sleeve that the control arm bolt passes through.