Prothane 7-1702 GM Lower Coil Spring Pad Isolator Set 1970-1981

These spring pads replace the original rubber or plastic isolators that sit between the coil spring and the lower control arm spring perch, cushioning the spring and reducing noise, vibration, and harshness (NVH) transmitted into the chassis.

Prothane's polyurethane formulation offers significantly greater durability than factory rubber isolators, which are prone to cracking, compression set, and deterioration over time. Upgrading to polyurethane spring pads helps maintain correct spring seating, reduces spring noise and movement, and restores a more precise, controlled ride quality.

Key Features:

• Made from Prothane's proprietary energy-absorbing polyurethane compound
• Direct factory replacement — no drilling or modification required
• Resists oil, road chemicals, and UV degradation
• Reduces spring noise and prevents spring walk or shift
• Restores proper coil spring seating on the lower control arm
• More durable than OEM rubber isolators
• Multiple pads included per set

Designed as a direct-fit replacement for a wide range of 1970–1981 GM applications, the Prothane 7-1702 spring pad set is an excellent choice for restoration builds, daily drivers, and performance street vehicles looking to tighten up their suspension with a long-lasting, cost-effective upgrade.