Ok, on my second Terrano now, the terrano has a transfer box like other 4x4, the front axle as I will call / say it is simular to that of a family type car, (drive shafts ) when you select the 4x4 high or low gearing the transfer box engages these drive shafts, on the hub of the wheel they have a auto locking hub inside, the hub is best described, as cams that spin out when the wheel rotates, and locks the wheel to the drive shafts, this is like a diff lock you may find on HGVs, both wheels must rotate the same distance,if you have a terrano, place it in 4x4 mode, at say 10 mph try to turn the sterring wheel you now will feel a great resistance as there is action that allows the drive shafts to correct one wheel turning a smaller distance than the other. On the rear axle is what is called a LSD a limited slip diff, this is packed whith shims in the gearing that allows the wheels to rotate at differant speeds when cornering, Im not familular with Pajero set up but if you look at discos you can see they have a front axle with a LSD on. So running in 4x4 drive on hard surfaces causes the front drive shafts to wind up as they say and can result in damage to the gearing, on soft surfaces the drive shaft will just spin to unwind. How do I know this =
The rear axle on my SVE started to jump round corners, I checked the oil in the diff and it was like milk, flushed it through and replace with the correct grade oil, still the same skipping round corners, my mechanic mate told me to take it to a specialised garage, I took it to a garage that repaires gearboxs and diffs, gave him all the info I thought was realavent,including the fact that I once a month placed it in 4 wheel drive for a bout a 1/4 mile just turn over the parts / gearing. He told me to stop this at once on hard surfaces as it would cause damage to the drive shafts, but was ok to do on soft surfaces, he reshimmed the diff changed the oil again and could find not real reason for it skipping, after a few hours on google , I found other owners with the same problem, they put it down to poor oil contaminated that made the shimms stick togeather, after a few oil changes or 3 to 4 hundred miles, it freed its self off. ( he also told me to try and keep the rear tyre tread depth the same as possible as this has a small bearing )
Any body knows different please reply as all information come in handy.
Hope this makes sence ?
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