Car ramps/stands

My Dad died in front of me using ramps. Worse day of my life having to hold him as he took his last breath. Do yourself a favor and get a set of tire tie downs as used on car dollies. Nothing safer than good solid quality jack stands. In some cases you don't get a second chance. I never used those ramps again. They were made from RR ties. He used them since I was a young boy. The built in blocking didn't hold the car from rolling that day. He was changing the lever seal on a 727.