I never heard of Uni-hoist but it appears this was made in the mid to late '70's judging by the trucks shown in the manual. Instructions show how to install on on Ford, Chevy, or Dodge by using different brackets in the kit. I couldn't use really any of them. First hurdle was to repair my existing bed as I wasn't going to buy a good bed to experiment on. Fortunately a coworker had just swapped out a bed on his shorty and the floor was in good shape where mine was shot. So I cut his up to repair mine. The center of my bed is double floor so to speak.