Rear diff has been ordered. Now I am looking for a front one. Everything looks good except for my early style front driveshaft/flange. Mine has a triangle/3 bolt flange on the diff input. 3.15 diffs all have the round 4 bolt flange. I can swap parts but I am concerned that I will need to reset the bearing preload in the diff. I have rebuilt a few non-BWM diffs where the flange nut held the pinion bearing preload.
For seal replacement, TIS says to mark the position of the nut vs shaft which is appropriate if the same flange is re-used. Since I would need to swap flanges, this method would only work if the 2 flanges were the exact same size. No torque value is listed in TIS.
https://www.newtis.info/tisv2/a/en/e...ential/FoIYi2V
The easiest option is to just swap in 2012 or 2013 front driveshaft. That will avoid the 2011 recalled ones. They are $100 shipped. Did the new style driveshaft get rid of the flexible disk?
Thanks and feel free to let me know if I am going in the right direction or not.