Clutch won’t release

[Paul Sevigny]

Working on getting a 35 truck back up and running. It had been sitting for 6 years with radiator and water pumps removed. Installed new water pumps, rebuilt fuel pump and carburetor and engine runs great. Went to take it for a ride but clutch does not disengage. Shifts with truck shut off and clutch depressed. Start truck push in clutch and it grinds when trying to get into gear. With engine shut off and truck in gear with clutch pushed in it won’t free wheel. Thoughts? It ran and drove good 6 years ago prior to being worked on.