Thank you to all, I appreciate the input. Years ago we weighed race cars with two scales and two blocks. We raised the car on the 2 post lift, placed the scales under front tires and blocks under the rear. Set it down, recorded the numbers, raised the car, swaped the scales to rear, blocks to front and recorded numbers, added up all 4 and were within 10 pounds of scales at the track. I wish I had those scales ! Thanks again
