Dave, the only recent mod is a dent in my rear bumber from my caravan jack-knifing when I was crossing a grassy nature strip which was wet and muddy. The Nav just slid sideways and dragged the van across until it jammed against the bumper. I had to use 4WD to get it across the grass verge. I tried again later without the van and the Nav still needed 4WD to cross it. Maybe I need better tyres than my BFG T/A's.
The only other change has been a replacement ABR Sidewinder dual battery isolator as my old Calibre (?) one from Supercheap died. New one is working well.