Consistent, Dependable, Winning: Precise, consistent, and dependable control is what makes AFCO 13T Shocks winners. These shocks have maintained their ability to provide the highest levels of performance from a fixed valve twin-tube shock by evolutionary improvements in production methods and component design.Based on Proven Technology: The new 13T series shock provides an overall better performance over its predecessor by use of a deflective shim design that is more consistent, more repeatable, and more fade resistant. By incorporating more of the technology found in our M2 and T2 Series shocks, the new 13T Series proves to be more versatile and tunable for special builds. Today, AFCO R-Series Aluminum Rebuildable shocks are better than ever and are set to provide you with the "just right" set-up you need to win.ALL AFCO 13T SHOCKS ARE 100% DYNO TESTED, REBUILDABLE, and REVALVABLE.Pit Stop USA offers AFCO R-Series 13T Aluminum Threaded Body Rebuildable Twin-Tube Shock - 7" Stroke - Valving: 3 Compression, 7 Rebound 1373-7T at low everyday prices. Be sure to check out all of our products from AFCO Racing Products including AFCO Racing Products AFCO R-Series Threaded Body Aluminum Shocks.