The Zone Offroad 4‑inch suspension kit for 1977–1987 Chevy 1/2‑ and 3/4‑ton trucks is a vehicle‑specific lift solution intended to provide 4 inches of suspension lift for those model years. Described as a suspension kit, it supplies the component set required for a 4‑inch lift on the specified Chevy pickup applications and is listed by Zone Offroad for that model range.
Zone Offroad 77-87 Chevy 1/2 / 3/4 Ton 4in Suspension Kit