My 90 has locking diffs in the front and back.
Ive just replaced all the front swivel service components, and put it all back together nicely.
Somehow, the front diff is now permanently locked.
Its locked and unlocked via an air compressor, and there is a light on the dash when it is fully engaged - This light is not on but the diff is defo locked.
Bloody thing.
Any one know anything about locking diffs?