When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
a 1976 Corvette is a C3, this is the C2 forum.
the steering box on a 1976 has no hoses attached to it so not sure what part you are referring to, the pump, the steering control valve, or the cylinder. Disconnect whatever hose you are referring to and check the fitting and the seat.