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The great thing about the LR diff Lock is that it CAN be engaged at any speed while on a loose surface,, just remember to disengage while also on a loose surface,, listen for the 3 pings and the dash light to go out.
The LR diff lock in D1's and 2's is the ultimate "Use it or Lose it" scenario,,
for whatever reason the linkages require periodic usage or they seize up,,,
This is from the Ashcroft web site. There is a video on installing the diff lock kit, plus an explanation of which vehicles have the internals, & which don't, Bob
Ashcroft Transmissions
Another from the Ashcroft web site, "frequently asked questions" about the CDL. This is the third question down, worth reading, Bob
"I have checked the adjustment but it won't come out of diff lock. Why?This is often reported after recent off roading, the centre diff is there to allow the props to turn at different speeds when cornering to stop drivetrain wind up, the speed difference is quite small and the centre diff gears are only designed to cope with these low speeds. If you are off road on snow or ice and you get wheelspin from one front wheel, what will happen is the rear prop will not be moving, the front will thus be going double speed, this means the small centre diff gears will be spinning like fury and after a matter of only a few seconds the plant gears will friction weld to the cross pins and the gears will fail etc, the result of this is that the diff will then behave as if it is locked as it in jammed with gear debris. The can happen if the driver forgets to lock the centre diff on a low traction surface or due to incorrect linkage adjustment, Please note this failure is not covered under warranty as we deem this driver error, the diff will never fail for any other reason other than excessive spinning, in which case the diff should have been locked by the driver."
Ashcroft Transmissions
Mine was just as you describe. "Diff lock" written on the hi/lo knob, with a vague indication on how to engage it. Nothing in the owners manual about it either.Quote:
Originally Posted by Clarkey
Then, after being shown how to find it, I'm finding it easy now!
Just put both main gear lever and the little Hi/Lo in neutral. Then play with the revs whilst pushing little knob to the left, and back and forth a bit. If it's there, you will eventually be rewarded by the red dash light coming on.
If, no joy, maybe the linkages have seized up through lack of use? ;)