4-door Chevy Suburban by Star Models.
Wow, these were some big trucks. Room for the whole family or a dozen ranch hands ! Includes one piece body, chassis, interior tub, grille, bumpers, taillights, seats, dashboard, and vacuum formed glass. This resin model / body would require a Light Truck model kit for donor parts to finish.
If available this product can be purchased at - www.resinrealm.net/Star/STAR%20Models/index.html - if it is no longer available try ebay.com