here is a pic to show the difference the HD trooper springs i got off mark at mg-autos on here made to my ride.

i just messured the hieght from the top of the rear rim edge to the bottom of the arch and spun the torsion bar nut till it matched on the front i lifted mine to 11 and half inch from rim top to arch bottom front and rear so over all about a 2-3in lift over all.
did the 2in as reccommended on the front but it still sat low at the front by an inch or so, so i leveled it out for a more even look
for the time being i am running the standard shocks and been off road nothing majour with no problems