Tie Rod Center Link for the Left side pickup. This is a one piece rod and end.
(Late 1976-80) K5, K10, K20-All
(1981-87) K20-with 13" rear brakes & 4.10 axle.
On 1976 2nd design trucks, tie rod ends are straight and grease zerks point down toward ground. 76-87 pickup trucks 88-91 Blazer, Suburban, crew cab V-1-2 series w/4.10