Thread: Centre diff lock stuck on

Is the light on the dash constantly on, if yes, then check sensor is clean, not screwed in too far or not screwed in enough. If the light goes off, but you are getting vibrations or other indicator it is not disconnected then some physical component has let go or broken or worn out ie check linkages, take diff lock case off and inspect etc.

Light on the dash is on but can defiantly feel it's on, especially when turning. Also when wheel jacked up it will only rock back and forth suggesting the diff is engaged from what I understand.

Are there any good guides with pics to taking apart diff lock

Ok so I have been under the defender while my assistant moved the centre diff gear stick in and out of lock. Defiantly engaging and disengaging on top of the diff but obviously something stuck inside. Any suggestions?

Need to know why you think your on/off gear inside the casing is stuck - dash light, vehicle grumbles or vibrates on hard ground? The unit is simple and robust if it is whats on an LT230 transfer case.

Have you tried lifting one rear wheel just off the ground, start engine and see if vehicle moves off? In theory if unlocked you will not move off and the lifted wheel will spin ie same thing happens off road on open diffs. If it is locked then in theory you should roll off the jack because your front wheels are getting some of the power, you still have traction.

It is locked as when I turn the wheels scuff and slide and the car vibrates. I am about to jack up one side (both wheels up) and try turning them back and forth to see if that disengages them

If you hear or feel a clicking noise when moving your lock lever, and your lock lever holds its position in or out then the selector shaft is moving and the detante ball bearings are doing their thing. If this is the case it is possible the selector fork has come adrift of the shaft, or the tips of the fork have worn, or the tips are not (for some reason) not connected into the groove found on the actual locking gear.

RAVE manual, Haynes, internet search.

Is your front locker off if you have one?

Try the one rear wheel off the ground thing first.