|
As stated already, 3.5" will be more than sufficent. As long as its a true 3.5". Mine is on a 3.5" slab, its a 10k lb Eagle 2 post asymetrical. 1 ton trucks are on it everytime I need to maintain my families or my vehicles.
An easy way to check is with a 3/8" hammer drill with a 12" bit, drill into the slab untill it speeds up. Mark the bit and measure.
|