A gantry crane adapter (37) for a two-post lift (20) includes a pair of angle brackets (50), each of which has a first, horizontal leg (56) and second, vertical leg (58). The first leg includes an aperture (72), and a short hook (70) extends in parallel, spaced relation along an outer surface of the second leg. The hook of each bracket is received in the slot (36) in a carriage (30) in a respective post (22, 24) of the two- post lift to removably connect each bracket to the respective carriage, with the first, horizontal legs of the respective brackets projecting toward each other. A load bearing beam (80) is positioned across the brackets such that an internally threaded boss (89) at each end of the beam is received in an aperture in a respective bracket, and a bolt (91) with a washer (92) is threaded down into the boss, to support and retain the load bearing beam across the angle brackets.
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