Shocks should be fine - wind the adjusters down a bit, mine are down about 11mm on the rear and about 5mm on the front.
Heres what the diff looks like (this is the rear) but they are all pretty much the same. A big grub screw comes out to let the pin out at the bottom and do you can take it all apart.
Clean all the grease off and then fill them with diff oil.. done!
