I have the Bilstein B8 5100 series,front an rear w/the 6 position ring, bottom being stock and 2 1/2 being max .Also I purchased a set of Motofab U.C.A's model#Chuca-20 to replace the old ome arm's.My next ? would be what position should the ring be placed to level it out.Never did like a 1/2 ton truck nose down plus would like to place bigger tire's down the road. The motofab arm's are rated for a 2 1/2-3'' level.