JLBEM

Hi all, I’ve got a 2012 Alphard G 4wd. I take the family camping and chuck my canoe on the top occasionally and still find opportunity to get the car stuck. Has anyone looked into fitting an lsd or the diff locker options provider by ARB etc? I’d be happy with lsd, electronic/air lockers. Going to do some research but just wondering if anyone had done it already to save me the effort. Cheers