Can anybody confirm if you can test for a fitted lsd by lifting both wheels off the ground and turning one to see whether the other spins the same way or opposite, as you can in a RWD? been told the 30M Diamantes had an lsd fitted but all my research points to no, so i want to find out once and for all!!! cheers

Different LSDs react in different ways. Can't remember which type only operates under load, but that's what Ralliarts have i think.
IIRC last time we basically just said, go drop the clutch somewhere and see what it does.

That's pretty hard in a auto matt

I don't think ralliart lsd's work that way.. you can still spin the wheels independantly without the other taking notice i think. Gather the lsd in the 30m would be similar.

Easiest way is stall it up and gun it in first. 1 or 2 black lines?

Different LSDs react in different ways. Can't remember which type only operates under load, but that's what Ralliarts have i think.
IIRC last time we basically just said, go drop the clutch somewhere and see what it does.

torque multiplier
requires some load to act as a LSD

Easiest way is stall it up and gun it in first. 1 or 2 black lines?

Thats a load of crock. I did some big skids in my VRX Manual years ago and it always left two black lines.. It didnt have an LSD..

My understanding is they need some load like lowrider said. with my Cusco LSD i had a few years back when i broke a CV the car was undriveable.. The broken shaft would just spin.

For what it's worth, when my car is jacked up & I turn one front wheel the other wheel turns too .... this is with a Quaife Diff.

Or you can have the car on whilst on the hoist. Hold the brakes on and try and turn one wheel. With the torque from the brake on the rotation it should force the other side to turn with it. Just a thought??

Generally while both wheels are up, if you turn one the other will turn in the same direction, this works on the back end of the AWD, works on my Triton as well as on the Ralliart and the Quaif too....

I think the only real test might be to jack the car up, get it idling in gear and then try and stop one wheel. If it rips your arms off, it's a locked diff, if you can slow it down a little, it's LSD, if you stop it and the other side spins twice as fast, it's a fully open diff. :)

Quaife or any other torque multiplier LSD, meaning you need at least some sort of resistance on both wheels otherwise only one will spin, lets say car is hanging of a cliff & you have one wheel in the air, that's the wheel that will spin the other will be doing nothing. So what you need to do as to apply some resistance to the one in the air, easiest way is to push your brake pedal a little bit, then both wheels will start spinning.

I've always been a fan personally of the big burnout. And no trouble in an auto. To make it easy, spray some tyre foam on the tread mate, hold the handbrake and let her rip!

IMO burnouts are no good - my old Daihatsu Applause would do both wheels at once without a problem.
I'm absolutely certain it did not have an LSD.

See this private road example:
http://i18.photobucket.com/albums/b129/Ogier/Applause/90kph2nd3rdBurn.jpg

For what it's worth, when my car is jacked up & I turn one front wheel the other wheel turns too .... this is with a Quaife Diff.


I completely agree, mine is exactly the same.

MY magna AWD rear assembly does the same as well.

yeah, i figured as much, had a lsd equiped l200 and with back wheels up, both would turn same way if one was turned, in fully open diffs they turn opposite. Mal does the ralliart diff do this??? cheers for all the replies!

Yep, my AWD rears spin in the same direction and at the same time, because the front is open diff, one of the front wheels spin in the opposite direction.

cheers guys will test tomorrow, im not sure it does have one, but would make sense for it too, the ralliarts did, although would the japs think along the same lines? also trans was replaced with recon one although would have to have been from a 30M im fairly sure, last owner smashed a hole in the diff, im guessing burnouts lol. lucky i got it 5000kms after new one installed