Well today i have realised the d40 rear diff is not as good as my old d22
Is there any way to improve it ?
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Is there any way to improve it ?
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D40 Lsd vs d22
tomread
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Filled with correct oil?
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I wouldnt know have not long owned the truck only had it a couple weeks
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The D40's traction control is more advanced than the D22's. I'd expect it to intervene in this scenario?
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There isn't much that can be done about the soft lsd on the D40. A refreshed oil can improve things slightly.
True that on post 2011 models traction control was fitted as well.
True that on post 2011 models traction control was fitted as well.
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You could try to flush it out to see if you can rejuvenate it?
On a D22 a LSD oil change is specified for every 36,000 miles, this often used to get missed/neglected stopping the diff working properly, when this has happened several owners have dropped the oil and refilled with a HIGH detergent content engine flushing oil, run this (driving gently) for a couple of hundred miles then drained and refilled with the correct LSD oil.
This cured the problem for many, and got the diff working again.
As you don't know the history of the truck and when the oil was last changed, this may be worth trying before you get into very expensive cures?
On a D22 a LSD oil change is specified for every 36,000 miles, this often used to get missed/neglected stopping the diff working properly, when this has happened several owners have dropped the oil and refilled with a HIGH detergent content engine flushing oil, run this (driving gently) for a couple of hundred miles then drained and refilled with the correct LSD oil.
This cured the problem for many, and got the diff working again.
As you don't know the history of the truck and when the oil was last changed, this may be worth trying before you get into very expensive cures?
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happy with mine it seems to lock ok as suggested maybe an oil change hopefully its not had the wrong oil in it, you could dump the clutch on some grass see if you get a 1 or an 11
Yeah it does 11s on grass just dont know why it didnt lock up when i was backing my trailer up which was also on grass, maybe i will give it an oil change just to make sure, either way im still happy with it so far
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My 2012 is the same, seems like its basically a open diff compared to my 2003 d22. I've changed the oil with no improvement.
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Well im not the only one with this opinion then
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The D40 has an open rear diff, but some can completely lock it where as others can't. When you can't lock it manually on the D40 it means that it will brake the wheel which spins most easily so it can give more power to the wheel which doesn't spin easily. It's not an lsd by any means but it works "ok".
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To my knowledge, but I might be wrong, the "lsd" you think you have, is what I just explained a "e-lsd" which isn't a real one, just a brake-based one.
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No idea if I'm going off topic, but this might answer your question better. What the Navara has is the same as this, for the road, it's good enough, no idea for offroad use.
Taken from Car Throttle:
It does without a limited-slip differential, but you do get torque vectoring by braking. This is supposed to act like an LSD, by applying small amounts of braking to alter the speeds of each of the rear wheels. So, you shouldn’t get one wheel spinning up madly on its own, otherwise affectionately known as one tyre fire. To test just how effective it is, we thought we’d do the mature thing and perform a ruddy great burnout.
Video:
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Actually the 2.5 D40 got the lsd, the V6 not.
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My original diff did lock up easily on grass but was soft it will work as a lsd but it's designed for gentle work off road. Mine did work good enough to help a drift in the wet. But chucked all the teach out with the oil not the strongest unit in the world so I wouldn't beat it a lot.
What I would say is it did 14000 miles on half teeth and still was going admittedly with 22degrees back lash and a rumble but it still worked when swapped out.
What I would say is it did 14000 miles on half teeth and still was going admittedly with 22degrees back lash and a rumble but it still worked when swapped out.
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