dirtye30

so i want o put some hi jackers in the back of my 89 RS but i want lowering springs in the front. all the springs i see are sold in pairs of front and back.i want 1.7inch lowering springs. the hi jackers are adjustable 2 inchs up and down. if i put lowering springs in the rear will i still be able to go 2 inches above my stock ride height? or just .3? and when i dump it will i be able to go down another 2 inches on top of the 1.7?