AnswerID: 59509 Submitted: Thursday, May 20, 2004 at 23:33
It sounds as if the dealer thinks you maybe driving on the bitumen with 4x4 or centre diff lock engaged.
Even though your front and rear tyres are the same size,there are minute differences in tyre height and pressure.
After thousands of tyre revolutions the front set may have travelled much further than the rear leading to wind up or jamming in the transfer case.
Steering around corners also causes tyres to travel different distances leading to wind up.
The 1st symptom is a t-case stuck in 4x4.
By coincidence this happened to me yesterday .Somehow I knocked the very soft 4x4 switch on my landcruiser and didnt notice the 4x4 engaged light driving into the sunrise.
On the way to work I noticed a very worrying vibration in the drivetrain like a dog shaking the water off.
Anyway I worked it out and drove backwards with the 4x4 switch off until it popped out.
Driving in circles or soft soil also works
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