OER Parts offers a wide selection of Cruise Control Components for your 1975 Chevrolet K20 Suburban. OER Parts offers 1975 Chevrolet K20 Suburban Dash Mounted Switch Cruise Control Unit For Use with Non-Computerized Engines, 1975 Chevrolet K20 Suburban Dash Mounted Switch Cruise Control Unit For Use with Computerized Engines, 1975 Chevrolet K20 Suburban Column Mounted Cruise Control Unit For Use with Computerized Engines, 1975 Chevrolet K20 Suburban Column Mounted Control Cruise Control Unit For Use with Non-Computerized Engines, and 1975 Chevrolet K20 Suburban Universal Cruise Control Handle.