2011 Sierra 2500 6L diff change

[Ttate87]

I am about to do a rear and front diff change and transfer case for first time on my truck. 30k miles. I know it's soon but it's been drove in rough conditions. Question is do the diffs have drain plugs and should the rear be pulled to clean it out since the magnet is internal, (I believe).

[sagent]

Yes the diffs have drain plugs at the bottom of the pumpkins. My owners manual shows the front diff drain and fill plugs like my 03 Yukon which is incorrect

[Ttate87]

Is the drain plugs on them magnetic, I've read that the magnet is actually inside the actual cover.

[sagent]

The transfer case plug is magnetic and I believe the diffs were also but could be wrong

[Artey72]

Front diff and transfer case has drain plugs.Rear does not have a drain plug,you have to pull pan. I would clean rear good before reinstall. I think the gasket on the rear is a rubber reusable gasket.