When ever the flange is changed, the diff should be removed, disassembled and a new crush sleeve, and seal installed. The pinion preload would then be adjusted, and the backlash set accordingly.
However, you can get around the proper procedure if you are careful.
Begin by carefully feeling the pinion preload-how much it take to rotate the pinion before it turns the ring gear. You need to be very precise and only feel the pinion turning not the ring gear and carrier.
I have helped many customers on the phone and have had very good success.
I turn the pinion a couple of times, you will notice that it will turn only about a 1/8th of a turn before it touches the ring gear. Once you get the feel of the pinion rotation, remove the nut, change the flange and carefully tighten the nut until you get the same feel. If you go too tight, it will feel very rough and must be unloosened.
thanks for the info. Marlin. I just bought you triple drilled flange yesterday and should have it by thursday or so. Will do what you said when I get it. Thanks again Marlin....and to everyone else who helped out
