posted June 16, 2002 10:28 PM
you have to have all four, any time you lift up one part of the car it puts more wieght on the opposite corner and when you let it down it takes wieght off of that corner. hope this helps.
posted June 18, 2002 01:18 AM
Technically you could have just one and have some sort of spacers under the other 3 like a coulpe 2x12 boards,to match the height of the scale. But that would be a major pain in the A-- if you needed to adjust your percentages. Whatever works for you man! Personally I say build all four and get it over with. jmo