The “Shrinkwrap Modifier” on the gearbox still has to be applied which I haven’t done yet because it needs the “Subsurf Modifier” beeing applied first in order to work properly which isn’t a good idea as long as you’re still editing your mesh. As far as I can see it now, the rear axle is now complete and ready for texturing (scratches, mud, rost etc.) and rigging. Maybe the hydraulic lines still need some adjustment and “hooks” for their attachment since they’re currently floating in the air, but @adrian2301, you can certainly judge this better than me.