OER Parts offers a wide selection of Exterior Styling for your 1948 Oldsmobile Series 78. OER Parts offers 1948 Oldsmobile Series 78 Front Spoilers & Air Deflectors, 1948 Oldsmobile Series 78 Grill Inserts, 1948 Oldsmobile Series 78 Ground Effects - Aftermarket, 1948 Oldsmobile Series 78 Ground Effects - OE, 1948 Oldsmobile Series 78 Light Covers, 1948 Oldsmobile Series 78 Rear Spoilers - Aftermarket, 1948 Oldsmobile Series 78 Spoilers - OE, Rear 1948 Oldsmobile Series 78 Louvers.