Can i put 24s on a 76 Oldsmobile without lifting if so what size tire?

Yes, you can fit 24-inch wheels on a 1976 Oldsmobile without lifting, but you may need to consider the wheel offset and backspacing to avoid rubbing issues. Typically, a tire size around 255/30R24 or 275/25R24 could work, but it's essential to confirm specific clearance and fitment based on your vehicle's suspension and fender modifications. Always consult with a professional for the best fitment and safety.