Can you replace lap belts on a 1976 Corvette with shoulder belts?

Yes you can. I purchased a rebuilt set from Davie's corvettes parts and accessories in 2004. They cost me about $400.00. The old pullies are removed from under the seats and from behind the shoulders of the driver and passenger seats. The car will have manufactured holes in the body to insert the bolts through. Good luck Correct. They're available from almost any Corvette specialty supplier, not just Davie's. I would NOT recommend a used set, EVER, since you really don't know exactly what kind of shape the mechanisms are in. -ku2002 1976 Corvettes came from the factory with shoulder belts, FYI. Anyhow your old ones can be restored to factory new condition by a company called SSnake Oyl. --Dave.