Just got rid of the old rear shocks that had the helper springs for my 71 Newport and replaced them with some new 81091 Gabriels but now the car is practically sitting on the ground and now the rear tires are rubbing. I'm thinking my leaves are flat. This is what I've found on www.stengelbros.com. I think 23-933 would be closest to the factory, but I would like to have 1 inch over stock due to aftermarket tires and I don't really have a clue how these different leaves will compare http://www.stengelbros.com