Manley Valve Spring, SPRING-1.640 DOUBLE 2001-ford-f-150-esi1856872 the kit features durable bushings

the kit features durable bushings with clamshells and billet aluminum end links for the rear sway bar

These adjustable front sway bar end links offer the ability to tune front suspension and improve handling

non-adjustable and sport valving options

adding strength to the entire rear chassis and suspension

The CBK764s heavy-duty construction eliminates vertical link bushing flex

Manley Valve Spring, SPRING-1.640 DOUBLE 2001-ford-f-150-esi1856872 the kit features durable bushingsFrom drag strips to short track and endurance circuits, the Manley NexTek series is engineered for serious racers. NexTek springs resist pressure loss and valve train degradation even in the most demanding race conditions. That means more consistent spring force deep into a run, reduced valve bounce, and improved overall stability for high RPM performance. Built to outperform and outlast in real world competition.