BAOSHISHAN 12 Ton Double Ram Bottle Jack 9.25" to 23.23" Lift Range

I chose this jack because of the max lift height and capacity. My truck's axles are about 22" above the the ground, so I need a tall jack unless I want to use excessive amounts of blocks (which isn't safe). Truck weight is around 12k pounds empty, 16.5k loaded. So a 12t jack gives a 100% safety margin empty and 50% loaded. This is the tallest 12t+ jack I was able to find. The jack arrived in good condition. Its big and beefy and looks well made. I did a "test lift" of my truck (empty) and it worked just fine. It lifts slowly, but that's to be expected given the high weight capacity. BTW, I used a Safe Jack axle cradle to safely lift the truck. Using a bottle jack with a small round screw pad on top directly on an axle is not a good idea. The Safe Jack 20t "universal lift pad" fits this jack. I still need to get a bigger and thicker base plate to place under the jack for stability and to prevent sinking in soft dirt, and to get a little more lift.

The jack was shipped with no or little oil. You have to pump it for 5 minutes to get it to extend and does not reach its full height. The second stage does not move very far. The jack is very difficult to retract into rest position. It is defective and dangerous to use.

This jack has the lift distance I need to lift a high GMC 2500 HD 7,000+ pound truck, with lots of pumping, but still good and not hard. The problem is that the jack release valve has no limit. If you turn it too many times counter clock wise to release the pressure, it will fall out and all the jack oil will come pouring out of the jack. There is no warning about this in the manual. The jack has a rubber oil fill plug to refill the jack with oil, but you can't take the rubber plug out without destroying it. The manual says call customer service for help, but doesn't list a phone number or email. I may have to return the jack if I can't find a replacement rubber oil fill plug. Hate to do that because it lifts my truck so well. Very nice if you are careful and know not to turn the relief valve too far. Update: I contacted the manufacturer thru Amazon Feedback. They emailed me today and seem willing to help. Update: 4/19/2023. The manufacturer is really willing to help. They are sending me the new rubber pug I need from China, free of charge. They are also very receptive to any suggestions that could improve the jacks design. This is the only jack that lifts my GMC 2500 HD from the ground. So, I was really worried about sending it back. The Jack fits on the floor in back of the front seat, with a jack stand. Great Jack.

Great jack

where can i get a seal kit? owned for less than one year and upper seal leaks...