OK. Thanks.
Still I do not understand how this locker is activated, it obviously must be locked in one or another way because the behavior / difference regarding 2WD / 4WD is quite obvious.
The jacking method could be used to test rotation direction on rear axles when it is placed in 2WD mode, but when placed in 4WD mode, the whole pickup is to be jacked so that all 4 wheels are free of the ground, and then the rotation of the rear wheel can be tested. If only the rear wheels are free off ground, and the mode is 4WD, you will not be able to rotate the back wheels, because of the connection to the front wheels via the drive train.
And it is the 100.000$ question what is happening to this rear differential when placed in 4WD mode, because the open diff versus
locked diff is quite obvious, regarding the behavior.
When transporting these (1000 ? kg ) wood on the pickup for some 1 year ago, I rather quick understood that the torque on the axles / was so strong that it was not healthy to continue in 4WD mode, and I changed to 2WD there and then to avoid damages. After changed to 2WD position, there was no difficulties whatsoever to do sharp turns ( without braking effects ), so it is no doubt whatsoever, that something is happening to this rear diff regarding behavior, when placed in 4WD position.
In 2WD mode it is open, in 4WD mode it is locked, but a locker mechanism is not to be seen, not electrical, not vacuum, or not pneumatic / hydrauic.
Mysterious patent, so to say.
It is strange that the Car manufacturer ( Toyota ) do not operate with a identification plate on the rear diff so that it easily can be identified, containing specifications so as ratio, type, lubricants and more.
I avoid using the 4WD mode , not on paved / bitumen / concrete/ asphalt roads.
I only use 4WD from time to time when using the highway, ( strait roads with almost no turns ) to obtain lubricant to the front differential. And of course out in the forrest, on moulded surface.
When leaving the higway, the gearshift is placed back in 2WD position
Rear differential locker Toyota Hilux / SR 5 / 2003 / 2,5TD
Re: Rear differential locker Toyota Hilux / SR 5 / 2003 / 2,5TD
Hi Ronny,
Couple of points.
Rather than starting a second thread, should just continue the first one.
Not sure why you think you have a rear diff lock from your original explanation.
What you describe happens with a 4WD where the front and rear are locked together even if it has open diffs, ie no lockers.
This is because when you turn a corner the inside wheels do not have to travel as far as the outside ones but because the front and rear are locked together the wheels try and turn the same amount, hence the inside wheel has to skid a bit if there is not enough flex in the tyre tread. Genererally it will be the rear that slips as it is more lightly loaded than the front.
Hope that all makes sense.
Cheers
Tim
Couple of points.
Rather than starting a second thread, should just continue the first one.
Not sure why you think you have a rear diff lock from your original explanation.
What you describe happens with a 4WD where the front and rear are locked together even if it has open diffs, ie no lockers.
This is because when you turn a corner the inside wheels do not have to travel as far as the outside ones but because the front and rear are locked together the wheels try and turn the same amount, hence the inside wheel has to skid a bit if there is not enough flex in the tyre tread. Genererally it will be the rear that slips as it is more lightly loaded than the front.
Hope that all makes sense.
Cheers
Tim