It 60' all over the place anywhere from 1.61 to 1.75, and it doesn't matter what it 60' it still has this horrible bounce about 60' out that last For about 30'. I have heard 100 different opinions on shocks from $10 truck shocks all the way up to $300 double adjustables. This car has spring sliders on it & I don't know if they are causing the problem or if it's the shocks? I'm just fed up with doing all of these things and none of it is working. I would hate to spend lots of cash on good shocks and that doesn't fix it, maybe my motor just makes too much power or torque for the SS springs.