OER Parts offers a wide selection of Starter Parts and Hardware for your 1968 Buick GS 400. OER Parts offers 1968 Buick GS 400 Starter Motor Brace, 1968 Buick GS 400 Starter Mounting Bolts, 1968 Buick GS 400 Starter Motor Heat Shield, 1968 Buick GS 400 Starter Solenoid, 1968 Buick GS 400 Starter Rebuild Kit, 1968 Buick GS 400 Starter Shim Set, 1968 Buick GS 400 Starter Heat Shield Set, and 1968 Buick GS 400 Floor Mounted Starter Switch.