Heavy Duty Upgrade, $20 pair

Order one Heavy Duty Upgrade for pair of Armstrong or Delco shocks you want upgraded and already have in your shopping cart. OUR HEAVY DUTY RE-BUILD PROCESS:-Designed for our customers who enjoy driving their cars with performance in mind.-Rebuilt to same high quality as our standard units, but with larger bronze bushing where main shaft rides. -Shock valving is upgraded, 15% stiffer than standard shock which makes for a longer lasting unit.-Highly recommended for many Armstrong aluminum body shocks, esp. Big Healey front and TR-6 rear shocks, and also for Delco double arm front shocks. -Ever since introduction of our Heavy Duty shock line we have been selling them 2 to 1 over standard units. -All rebuilt shocks come filled with fluid and ready for installation.