For off road purpose, I would choose the manual switch from 2H til 4H any day, for slippery wet/icy road, I guess the auto version is better. But as I regard the Terracan as an off roader, I really don't see why anyone would choose the auto??? Why not buy a Impreza if you want a tarmac 4WD?
I like to be in control of when the 4WD is engaged and when it is not. However when hill ascending or hill descending, 4L would be chosen, so in this case it wouldn't matter whether it is auto or manual.
Observation: The 2H reverse is very high geared, so it is almost impossible to reverse with a trailer without excessive use of the clutch. Would be nice with a 2L :clap:
On the LSD, I chose NOT to have this installed, again I like to be in control of when the diff. is locked. And when I see a difficult situation ahead, I would prefer to activate the locker BEFORE traction is lost. So I am going for an airlocker some time. Problem is getting information about which locker fits.
Also, the LSD is not 100%, and eventhough it would get you out of most slippery situations like wet grass, will it help when cross-axling?
Also in relation to the LSD as mentioned, is the problem with the spare, I use BFG AT's 255/70 (highly recommended for the Terracan!!!).
Go the the airlocker! If anyone has tried this, I (and probably others) would be very interessted to hear about it).