To be honest Colin, if that happened to mine, the broken gearbox would be at the very bottom of my list of worries.Colin Lambert wrote: I would never leave an automatic in PARK only on the road in case someone ran it up the back , that would break the gearbox and push it into what ever was in front of it.
There is no logical reason to have a handbrake on an auto-box as far as I can see. I've only ever had grief at MOT time for handbrake adjustment on something I never use.
