Re: will a cheap Chinese..
I've currently got a 258 on a "cheap, Chinese 750lb" for storage only. I would not attempt to wrench on it. Its scary enough (3 casters) just moving it. I'm a high school shop teacher and I often use it as an example, and then have students re-engineer and build one (read overbuild) properly. A diagonal brace eliminates all bounce, and an extra caster up front eliminates the tipping. Why? I had a very good friend pull a 283 Chevy over on his leg several years ago, and he'll never be "good as new", even after several surgeries. Please, err on the side of caution!
76 CJ5,2.5" lift/Rancho 9000's,258/T-177/D300,HEI,Offy,Locked F&R