you can get the stock coil spring specs from EATON spring in michigan,,,I installed the fat man dropped up rights and new stock spec coils from eaton,and i had to go to a shorter tire, i can just imagine how low your car sits with cut coils,,,and if you could steeer im sure you wouldnt like the ride quality,,, with m y dropped uprights and new stock spec coil springs,and the upper shock mount moved to the frame it rides and handles much bettter,, now all i need is a front sway bar,,,ill post a pic of how it sits now,,,my car is the blue car in pic,,,the lighter color car is a 40 plymouth,with stock front end ride height