Prothane 7-1019-BL Rear Leaf Spring Cushion Kit Black Polyurethane

The Prothane 7-1019-BL is a rear leaf spring cushion kit made from premium-grade polyurethane, designed as a high-performance upgrade over worn or degraded factory rubber spring pads. In leaf spring suspension systems, significant forces are concentrated at the spring contact points, making the condition of these cushions critical to ride quality and suspension alignment.

This black polyurethane kit replaces the soft, deteriorating OEM rubber pads with durable polyurethane components that resist compression set, chemicals, and wear far better than stock rubber. The black colorway incorporates a small amount of graphite into the polyurethane compound, which can help reduce squeaking during normal operation. Proper application of the included pre-lube grease at installation is recommended to ensure quiet, long-lasting performance.

Key Features:

• Premium polyurethane construction — significantly more durable than OEM rubber
• Helps keep leaf springs properly aligned and seated
• Reduces noise, vibration, and harshness (NVH) transmitted through the suspension
• Black finish with graphite-infused compound for reduced squeaking
• Precision-molded for a direct OEM replacement fit
• Includes pre-lube grease for proper installation
• Backed by Prothane's lifetime warranty against defects in materials and workmanship

Prothane's lifetime warranty covers all suspension parts against defects for as long as the original purchaser owns the vehicle. This kit is a straightforward, bolt-in upgrade that restores and improves rear suspension performance.