If you have auto locking hubs, once you have selected 4 high, you can move the lever to 2 high any time and at any speed, in my opinion and from my experience.
You don't need the clutch, there will be no clunk.
Which allows you to continue driving on drier tarmac after say starting off in 4 high on the slippy stuff.
Now....
If the front hubs are still engaged, and they should be, unless you have rolled back or reversed, then you should be able to slip the lever from 2 H to 4 H at any speed.... CAUTION....
Yes you heard that right BUT....:doh
YOU HAVE to be certain that the front hubs are engaged and that the front prop shaft is being back driven care of the front hubs and front DIff.
As I have posted before, I have put a sensor on the front prop shaft that flashes a light on the dash, then I know it is ok to slip it in...:augie
If you are not certain that the hubs are engaged or if you haven't selected 4 high
Then you must not exceed something like 20 mph. GUESS...
With my sensor I slip in and out of 4 wheel drive without the clutch several times on each journey. I slip into 4 wheel drive when moving away, braking on ice or snow, I regularly do it at speeds of 40 50 mph, or even more if conditions allow.
WARNING doing this at speed without being certain that the hubs are still engaged will break something.... YOU HAVE BEEN WARNED.:eek
I have been doing this now for over 17 years, I am still on the original parts, everything still works, nothing clicks or clunks.
DO NOT ATTEMPT TO SELECT 4 LOW UNLESS THE VEHICLE IS STATIONARY.
IF GOING BACK FROM 4 LOW TO 4 HIGH, YOU MUST AGAIN BE STATIONARY.
Now, bring on the snow....:thumbs
Don't forget having 4 wheel drive may mean you have more traction, and you can burn off anyone at the traffic lights, you have no better stopping power than any standard car.
You can still skid and slide down hills and crash into things, so be sensible.:thumbs
Enjoy,
Best regards, Rustic
