Reversible portable hoist

An improvement in a portable hoist mountable in a pickup truck and having a U-shaped frame, the improvement comprising a main vertical hoist support member with a secondary vertical hoist support member telescopically positioned therein, spaced upstanding apertured tabs on said main vertical hoist support member and a pin and clip assembly engaging said main vertical hoist support member and said secondary vertical hoist support member pivotally securing the same within said main vertical hoist support member, so as to pivot said secondary vertical hoist support member to a horizontal position, a boom and means pivotally securing said boom to said secondary vertical hoist support member, a piston and cylinder assembly, pairs of spaced apertured tabs positioned on said main vertical hoist support member and said secondary vertical hoist support member and said boom for selectively positioning said piston and cylinder assembly between said boom and said secondary vertical hoist support member and between said secondary vertical hoist support member and said main vertical hoist support member, a source of fluid pressure for said piston and cylinder assembly, a cable and hook assembly and means for attaching said cable and hook assembly to said boom and alternately to said secondary vertical hoist support member.