Collection: OBS Interior Billet

OBS Interior Billet parts for 1988-1999 Chevy & GMC GMT400 trucks — dash trim, shifters, door handles, HVAC and climate knobs, grab handles, sill plates, and more precision-machined billet upgrades for the cab. The dash changed in 1995, so shop by your truck's dash style: 89-94 Interior Billet or 95-98 Interior Billet. Browse the full OBS Billet Parts & Accessories hub, or shop Exterior Billet for outside-the-cab upgrades.