Pajero Owners Club of South Africa

Hi Guys
I have just completed my second test run after fitting a 2003 3.5 V6 Manual rear diff with diff lock to my 2006 3.8 V6 Auto with Traction Control. I managed to buy both front and rear diffs together with the pump, ECU, switches and full wiring harnass for R7500.00 from a scrapyard in Benoni. Allthough I got the ECU also, I am not making use of it as it will interfere with the TC. My installation is similar to that of Cloyd, except that I was lucky enough to get a rear diff with the same ratio (4.3:1) as my original diff. That means that I did not have to replace the front diff. I activate the D/L by means of the original D/L control button from the 2003 model. The advantages of our installation is that you can use the diff lock at any time when its needed,you dont have to be in 4HLC or 4LLC as per the original system. This is possible because it functions manually and not via the ECU computer. That means that the TC does not know it is installed and will therefor continue to operate as designed. (Just much less as the wheel spin is now minimised) The disadvantage of our installation is that there exist a possibility that you can either forgot that is has been activated or someone can press the activation button by accident. To prevent this from happening, I have installed a power switch with a warning LED which feeds power to the diff lock switch. The diff lock switch also have a seperate LED warning light which is activated by the switch in the diff. (I am still trying to connect the original D/L warning light) After completing the diff transfer (With the assistance of the people at MITSPRO) I took the vehicle for a test drive at LA Sport in Voortrekkersweg in Pretoria. I was surprised by the ease of driving the axle twisters. I could actually drive using only 2H with D/L. Today I tested the Pajero at a old mine site close to my place of work. The condition were wet and were mostly worn out by scramblers, but not once did I get the feeling that I am not gonna make it. Congratulations to myself on a job well done and thanks to the Freeks at MITSPRO for their assistance. Also thanks to Cloyd for his advise and I hope we can have a GTG soon to show the guys the capability of a Pajero with both T/C and D/L.

Be careful with the tc. If the tc doesn't know about the dl it could overheat the brakes very quickly and put enormous strain on the diff.

I don't know how the factory dl and tc interact but I suspect the rear tc is deactivated when the dl is active otherwise you would have the problem as described above.

Unless it never senses rear wheel slip with dl and never activates the rear brakes in any case with the dl on.

Maybe my understanding of the TC is wrong. I thought that the TC will only be activated if
1. One of the wheels spins faster than any of the other three.
2. The speed of the spinning wheel is between 4 and 8km/h

As soon as any of the above happens the TC will activate the ABS which will then transfer the power of the spinning wheel to another wheel.

With the D/L activated non of the rear wheels can independently spin at a speed high enough to activate the TC. That means that the ABS will not have as much work to do which in turn means less heat generation on the brake system.

If I misunderstood the whole concept I would appreciate if you could direct me back into the right direction.
Harry