Ok I installed a set of prokits on my brother's classic along with some GR2's. My question is this. Should the rear be sitting noticeably higher then the front? And do the progressive springs go in the rear or the front?

ive heard they tend to sag over time...are they new?

I have the same set up, 1.4 inch drop in the front & 1.1 in the rear, the rears are progressive & front linear.