I want to buy one of those aluminum floor jacks from Harbor Freight. the two i'm interested in (the price is right) are:

Item 91039 $89.99 3" to 15 1/8", 24lbs, Overall dimensions: 20-1/2" L x 9-3/8" W x 8" H

Item 3939 $139.99 3 1/2" to 17 1/2", 35lbs, Overall dimensions: 23.62'' L x 11.81''W x 6.1''H

They are both rated 3000lbs. Anyone seen/own the cheap one? It weighs 11lbs less than the other one. Is it chinsy?

I already have a heavy (too heavy!) 2 ton Harbor freight floor jack that is about 25 years old.

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1972 450SL
1982 300D Turbo