Rubber differential bushings wear out and allow the axle housing to shift under load, causing vague cornering and unpredictable throttle-steer on 1999-2004 Mustang Cobras. Prothane's polyurethane rear differential bushing kit replaces those soft, degraded mounts with material that holds its shape lap after lap and mile after mile.
Polyurethane construction that outlasts rubber. Prothane's polyurethane formula resists compression set, oil contamination, and heat cycles that cause stock rubber bushings to crack and collapse. The firmer durometer keeps the differential centered under hard acceleration and cornering, translating more of your throttle input into forward motion rather than axle shuffle.
A direct replacement with no modifications. Each bushing in the kit is dimensioned to the factory bore on the 1999-2004 Mustang Cobra rear differential mounting location, so fitment is straightforward. Prothane Super Grease is included where necessary to ensure proper lubrication and reduce any NVH from the upgrade.
Backed by a lifetime warranty and made in the USA. Every Prothane bushing kit carries a lifetime warranty and is manufactured domestically, so you know exactly what you are getting and can count on it for the long haul. Available in red or black to match your build aesthetic.
Product Benefits
- Polyurethane Construction: Resists heat, oil, and compression set far better than stock rubber.
- Improved Axle Stability: Reduces differential movement under acceleration and hard cornering.
- Direct Fit: Sized to factory bore dimensions on 1999-2004 Mustang Cobra rear differential mounting location.
- Prothane Super Grease Included: Proper lubrication provided for quiet, long-lasting performance.
- Color Options: Available in red or black to suit your preference.
- Lifetime Warranty: Covered for the life of the part.
- Made in the USA: Domestically manufactured for consistent quality control.
About Prothane: Prothane has specialized in polyurethane suspension components for decades, producing direct-fit bushing kits and suspension parts for a wide range of domestic and import vehicles. All Prothane products are manufactured in the United States and backed by a lifetime warranty.
WARNING: California Residents: Cancer and Reproductive Harm;
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Product Specifications & Vehicle Fitment
Review the product details and confirm compatibility with your vehicle before ordering.
| Specification | Details |
|---|---|
| Vehicle Trim | Cobra |
| Vehicle Fitment | 1999, 2000, 2001, 2002, 2003, 2004 |
