Rubber spring isolators compress, crack, and settle over time, letting your Cobra's rear springs shift under load and introducing slop into suspension geometry. Prothane's polyurethane rear lower spring isolators replace that soft OEM rubber with a material that holds its shape, resists petroleum and road debris, and keeps the spring seated exactly where it belongs through every corner and launch.
Polyurethane construction holds up where rubber fails. Prothane's polyurethane compound resists compression set, UV degradation, and the oils and solvents that deteriorate factory rubber isolators. The spring seat stays consistent lap after lap and mile after mile.
A precise fit for the 1999-2004 New Edge Mustang Cobra. These isolators are dimensioned specifically for the Cobra platform, so they drop into the factory spring perch without trimming or modification. Alignment geometry stays exactly as set, with no unintended changes to ride height or spring rate.
Color options to match your build. Available in red or black polyurethane so the finished install suits a show-ready or a purposeful track build equally well.
Product Benefits
- Polyurethane Material: Resists compression set, chemicals, and UV far longer than OEM rubber.
- Platform-Specific Fit: Engineered for the 1999-2004 New Edge Mustang Cobra rear suspension.
- Consistent Spring Seating: Eliminates spring shift under hard acceleration and cornering loads.
- Red or Black Options: Choose the color that fits your style.
- Made in the USA: Manufactured domestically for consistent quality control.
- Lifetime Warranty: Backed by Prothane's lifetime warranty against defects.
About Prothane: Prothane has manufactured polyurethane suspension components in the United States for decades, offering enthusiasts a direct upgrade path over factory rubber bushings and isolators. Every Prothane component is formulated and produced domestically, and each kit includes grease where necessary for the application.
WARNING: California Residents: Cancer and Reproductive Harm;
www.p65warnings.ca.gov
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 |
