I have a Harbor freight engine hoist from about 20-years ago. The hydraulic ram on it failed the first time I used it.
Really not the ram as much the threads for the release valve were stripped, and when I went to lower the 383 after pulling it, the release valve came all the way out drop the engine on the garage floor and crushing the oil pan. Lucky that was the only damage.
I replaced that hydraulic ram with another from a different source, and it has worked fine since then.