The front spacers are the same on both sides, on the front. I clean them good, and put a light coat of grase on them before I install them. I also wipe off the inside of the Wheel seal, to avoid getting dirt in the bearings.
I also clean the axle real good and apply a light coating of grease. The torque spec on the axle nut is 94 Foot pounds. The calipers are 25, and the axle pinch bolts are 15. Go back and forth on the pinch bolts a couple of times, as the bolt torque will change from side to side.
Sorry guys, I got on a roll.