LSD diff or not?

[VL_5SPEED]

This has been bugging me for awhile. I think my VL Berlina has an LSD diff in it. Heres the thing, if I plant it the right wheel will spin. When I drop the clutch and apply the brakes the car will start kicking out sideways and then will leave twin lines for a about 3 metres and then the right wheel will stop spinning and the left wheel spins for another 20 or so metres going up the road (Single spinners dont spin the left wheel). It also does twinies in the wet. My car is a dead stock VL Berlina with low K's pretty much in immaculate condition inside and out. Is it possible the diff was replaced with a VL turbo diff?? It is also a disc rear end.

[JD]

i reckon it might be a worn LSD because they can spin right, left or both.

[immortality]

the only way to be 100% sure is to pull the cover off the back off the diff and look at the center. failing that, jack up one rear wheel (make sure the other is firmly on the ground) and see if you can turn the wheel thats in the air. if it turns it's not lsd (or a totally rooted lsd) or jack the whole back end up and turn one wheel, if the other rear wheel spins in the oposite direction it's not lsd, if it spins in the same direction it's lsd but then if you do the one wheel in the air test and you can turn the wheel by hand it means the lsd is worn out.

[VL_5SPEED]

Ok thanks for your help. I will try that once it stops raining and drys up.

[DANNY8]

When we first got PEAKN6 running, we went and layed a skid and the left wheel lit up (that was a single spinner 8 bolt)....that diff lasted bout a week.

[Gus The Snail]

If its LSD , it will have a tag on it , stating the obvious.. but my money is its worn out single pegger.

Easy test... jack up one wheel , and try to drive off the jack , even if the LSD is worn , it will still try and drive off it

[VZTHUNDER]

wouldnt trying to drive off the jack be incredibly stupid?

[dufus]

If its LSD , it will have a tag on it , stating the obvious.. but my money is its worn out single pegger.

Easy test... jack up one wheel , and try to drive off the jack , even if the LSD is worn , it will still try and drive off it

Or you could do the sensible thing and jack the rear of the car up and spin one of the wheels (in neutral obviously). If the other wheel spins in the same direction the car has an lsd, if the wheel spins in the opposite direction it has a single spinner.

[VL_5SPEED]

I still haven't got around to trying it but it has to be an LSD. I had it doing some big fishies along an old coal mining road. Two big fat black lines for 30 meters up the road Its a completely different feel to my old VL as well. My old VL used to want to spin when not even going over half throttle. This new VL just wants to grip while spinning and it chirps a lot when my old VL didnt?

[1991_Vn2nV]

Could just be a stuffed diff too. Just jack it up already and spin a wheel.

[VL_5SPEED]

I jacked it up today with one wheel on the ground and one wheel in the air. It spins... I dont understand how a single spinner can do twinnies?? Its sudden as well, not the right wheel spinning and then eventually the left wheel spins....???? Or maybe it is a worn out LSD? I cant jack the whole rear up. There is no noises or clunks or anything coming from the dif.

[1991_Vn2nV]

What surface are you doing twinnies on? If its on dirt or something then a single spinner will do twinnies.

If its on bitumen im hoping you have a 5L or turbo cause an N/A VL Rb30e aint gonna make 30m twinnies

[VN_Luke]

even if one wheel spins with the other one on the ground, it could still be a f*cked lsd... (my first and only LSD used to do this... ... at least once a month )

to be sure that it's an LSD you gotta pop the back cover and inspect the center. The LSD center carrier is notably different to the open center. - If you're actually going to do this, I'll gather up some pictures so that you can ID which one you have a lot easier.

Option two, if you want to risk looking like an idiot, is to take the car to a diff guy and find out

[14secvp]

single spinners will spin both if you feed it too them my hq i used too snatch the handbrake to get the second wheel spinning then it would just keep spinning both

[VL_5SPEED]

What surface are you doing twinnies on? If its on dirt or something then a single spinner will do twinnies.

If its on bitumen im hoping you have a 5L or turbo cause an N/A VL Rb30e aint gonna make 30m twinnies

Who does skids on dirt? Its an actual road. Dead stock VL, its only lowered, rims, recent respray burgandy over silver with zero rust. I was talking about 30 meter fishies with the brakes slightly on....

[VRSS]

it would be a stuffed single spinner. single spinners can spin either left or right and will do twins when they're on the way out. put a trolley jack under he diff and jack the car up. once both wheels are off the ground turn one of the wheels, if the other one turns the same way its an LSD, if it turns in the opposite direction its an open wheeler.
if you keep doing '30m fishies' with your open wheeler doing twins it wont last very much longer

[VL_5SPEED]

Ok that sounds strange. I don't have the equipment to jack the whole rear up. Why would it spin both wheels when the diff is "stuffed". Should there be any other symptoms of a stuffed diff? My old VL was very very dodgy, the diff used to always clunk when applying the throttle and when letting off the throttle when in drive but that never used to do twinnies???

[VT Berlina 07]

:hi, as someone else stated stop doing 300m OH, i mean 30m skids, or whatever diff you do have it wont last long. my guess its a single pegger thats on its way out. other symptoms are whining and clunking.

PS (single peggers can spin left wheel)

[1991_Vn2nV]

When single spinners are on their way out, they often spin both wheels mate.

[1991_Vn2nV]

even if one wheel spins with the other one on the ground, it could still be a f*cked lsd... (my first and only LSD used to do this... ... at least once a month )

But if its a f*cked lsd, why is it doing 30m twinnies

If one wheel spins with the other on the ground and its doing 30m twinnies, its a single spinner on its way out imo.

[DANNY8]

Ok that sounds strange. I don't have the equipment to jack the whole rear up. Why would it spin both wheels when the diff is "stuffed". Should there be any other symptoms of a stuffed diff? My old VL was very very dodgy, the diff used to always clunk when applying the throttle and when letting off the throttle when in drive but that never used to do twinnies???

The noises ur old diff was making was prolly the backlash in the gears.

If u can jack one side of ur car up....sit it on a few blocks or sumfin then take ur jack around the other side and jack it up.....or go buy a cheap $30 trolley jack and jack it up under the diff. Always use car stands b4 getting under tho, not that u need to get under but just thought I would add that bit.

To my knowledge there isn't really any other 'symptoms' which will occur if ur diff is not far off breaking. Your best option would be to go buy another diff and keep it in the shed until the time comes.

We've had 2 cars which were auto's, and 2 manuals....both auto's never blew a diff, both manuals are on their 3rd diff haha....both blew 2 Salisbury 8 bolts, but now both have Borg Warners under them. Gonna get rid of them soon coz me and Brad are both buildin wagons, so we can get rid of the sedan gear.

[VL_5SPEED]

Ahhh crap this doesn't sound good. No more burnouts. When I jacked one side up it was a little hard to spin the wheel. Like it wasnt like spinning the front wheel I had to put a little effort into it. This diff makes zero noises, but I'm not going to risk it anyway.

[VL_5SPEED]

Well, you guys are right. I got it jacked up today and when you spin one wheel the other wheel will spin in the oppisite direction. So obviously its a stuffed diff. Any idea on how long this diff will last with normal driving??? ATM it makes no noises, everything is smooth.

[VN_Luke]

But if its a f*cked lsd, why is it doing 30m twinnies

If one wheel spins with the other on the ground and its doing 30m twinnies, its a single spinner on its way out imo.

For the same reason a f*cked single spinner would lay 30m twinnies ....

or if it's not THAT f*cked an LSD (to have welded/damaged the spider/side gears), the cones might still hook up from time to time... depending on side load on axles, temperatures, loads, etc?

[Clutchy]

Well, you guys are right. I got it jacked up today and when you spin one wheel the other wheel will spin in the oppisite direction. So obviously its a stuffed diff. Any idea on how long this diff will last with normal driving??? ATM it makes no noises, everything is smooth.

How long is a piece of string ???? id be looking for another diff as ya never know when ya will need it.