Protect your Fox Body or SN95 Mustang's suspension geometry from the flex and deterioration that rubber spring isolators invite over time. Prothane's rear upper and lower spring isolators replace the factory rubber with polyurethane, firming up the interface between the spring and the perch so the suspension behaves predictably under hard cornering, braking, and acceleration.
Polyurethane construction where it counts. Factory rubber spring isolators compress, creep, and degrade with age and heat cycles. Polyurethane holds its shape, maintaining consistent spring seating and reducing the unwanted movement that blurs steering and handling feedback on 1979-1999 Mustangs.
Available in red or black. Both color options deliver identical performance characteristics. Choose black for a factory look or red to add some flair under the car.
Lifetime warranty. Every set carries a lifetime warranty, ensuring confidence in this upgrade for the life of the vehicle
Product Benefits
- Polyurethane Construction: Resists compression, heat, and degradation better than OEM rubber isolators.
- Direct Fit: Engineered specifically for 1979-1999 Fox Body and SN95 Mustang rear spring perches.
- Upper and Lower Included: Complete set covers both ends of the rear coil spring for a thorough refresh.
- Two Color Options: Available in red or black to suit your build aesthetic.
- Lifetime Warranty: Backed for the life of the part against defects.
- Made in the USA: Manufactured domestically by Prothane.
About Prothane: Prothane has manufactured polyurethane suspension components in the United States for decades, building a catalog that covers bushings, mounts, and isolators for a wide range of performance and enthusiast vehicles. Their parts are a proven choice for restorers, racers, and autocrossers alike who want suspension components that outlast the factory rubber.
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 Fitment | 1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999 |