Review on 🔧 Powerbuilt 620471 Unijack - 6000 lb. Capacity, Black - 6000lb Unijack for Convenient Lifting by Jon Ford

Modern unibody designs make it almost impossible for manufacturers to follow their recommendations for lifting and stabilizing a car with 4 specific jacking points. You can either jack the car up at other points (which is still certainly possible if you know what you're doing) and place stands under the recommended jacking points, or you can just use a jack and pray the hydraulic seals don't fail . These jacks solve the problem by combining the jack and stand with a single point on the car. In practice it worked so well that I have already ordered more. If anyone is interested in the differences between the 640912 3 Ton All in One Jack and the 620471 620471 Unijack Jack, both are currently manufactured and sold. from Powerbuilt - as far as I can tell the more expensive 620471 has 5 locking positions compared to the 640912's 3. The reach is the same, it just gives you additional height options between the lowest and highest locking position. And the plate that connects the piston to the jack is different. I currently have one of each, and for my use there is no benefit in paying more for 620471. Again, both are still in production and both are listed on the Powerbuilt website. The description for 620471 literally says "same product as 640912", although they are obviously slightly different. 620471 appears to be the newer of the two models.