Ha. I always wanted 1. So on a mission I go.... Found 1 on CL for $100 I think. Anyhow when I was doing my 261 transplant along with trans, clutch, and rear diff replacement into my 51 sdn, I thought it would a good idea to get my car as high as I could. Then use jackstands of course. Well it was close to the top of the bumper jack height and made the work much easier. Now completed, it was time to reverse the procedure and lower the car back to the ground. I picked up the front of the car and removed stands, tried to lower car when the jack decided to break. But didn't fall, thankfully, it stuck at the top. Even with the air disconnected, just stuck. Wasn't real fun trying to jack up a car 4 feet off the ground to get the stuck jack out from the bumper. Lol. I never did fix it . I actually cut a piece of steel off it for something or other. Still sitting in the corner, stuck at the top of its travel. Ha. Probably won't buy another one tho