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

4000 lb jacks small enough to stow under the front seat of my Dodge Ram 1500. I keep it in my truck for emergencies. It can climb high enough to replace every tire on this truck. I pick up the front wheel by placing the jack under the frame. To raise the rear tire, the jack is placed under the axle. I also have two 6000 lb jacks. The 6000 pound jacks work well when I'm parked on level concrete. Sometimes when I've parked on uneven surfaces like gravel, the 6000-pound jacks are too tall to fit under the truck's frame. I use 6000 pound jacks for brake work or tire changes. A 4000-pound jack is better suited for roadside emergencies.