Looking to upgrade from the stock plastic 4-links on your SMT10?  This 4-link kit consists of a set of machined aluminum lower 4-links along with a matching set up bent upper links.  These links are direct replacements for your flexible stock SMT10 plastic links and will maintain your stock 14" wheelbase.  You will receive a complete set of 4 machined links and a complete set of bent aluminum upper links, enough to upgrade your entire truck!