Canada WTB: Ignition Key/Lock Cylinder (1973-1977).

[1979 GMC Sierra]

Hey guys, I'm looking for an Ignition Key/Lock Cylinder for my 1976. The earlier version that has the tab you push in with a screwdriver when pulling out, not the lock retaining bolt kind used in the 1980s squarebody's. Mine is slightly damaged and turns sometimes without the cylinder turning with the nob. It also jams at times, and I can't start the truck. So looking for one in good shape, and with keys obviously. Let me know. Thanks.