they will work fine.... the only difference between the DC and DA chassis is the rear shocks on a DA are about 1 inch longer from the spring perch UP.
so in theory it would be "better" to use DC shocks instead of the DA because at a lowered height you would have 1 inch MORE shock travel than with DA shocks with the sacrifice of less "droop".
and then the spring rate thing..... eh, give or take you would either be a few MM shorter or higher than a DC/EG chassis. hopefully this clears up your confusion, with my coupe ive messed around with alot of shocks, springs, ect. alot and this is all from my personal experience
