Second hand LSD problems.

[Deneo]

Hey guys

Brought an lsd of some shady lookin C*** off Egay.
Put the lsd in and thought it was good, Now after driving it for about 5 mins it starts to get a mad whine/scrape sound up.
Also when reversing the first time i got a mad clunking sounds 2 times sounded like the gears locked up or something.
Anyone know what the problem could be? needs a decent service?
Thanks.

[ss905l]

id never buy a second hand lsd or diff dude, its only like $1100 to get your diff gears changed and lsd recoed or shimmed.

[Spinb]

Did you check if there is any oil in it?

[VRSS]

its screwed, and if it wasnt screwed just had no oil in it and you've driven it, its screwed now. pretty much better luck next time

[Deneo]

Some tipped out of the breather but other than that no i havn't checked, Will tomorrow morning.
And i had no choice ss, Had an open wheeler in a 5.0 and im on a tight budget, Payed 150 for the diff.

[VRSS]

yeah ive bought 2 second hand lsd's but ive been lucky, by 'buy a new one' i meant by another one...

[Deneo]

Could i get it recoed?

[zapper-l67]

MMmm I think what you are hearing is whats called diff chatter.
This is caused by the Limmy slip cones binding to the differential end gears.
This is a common problem with Holden LSD Diff's after a oil change and is not a big problem to fix.
GMH have a product called Diff Chatter Pack which is just re-labeled
Penrite LIMSLIP ADDITIVE 7098
Used to alleviate problems associated with chatter in all limited slip and spin resistant differentials.
So you can save your self a lot of cash by getting the stuff from Penrite direct and giving the expensive GMH re-branded stuff a wide birth.
LIMSLIP ADDITIVE 7098 - Penrite Oil

[Deneo]

Eh,
I'm a complete nob, The LSD has no F***** oil in it. Well, I think.
If i stick half a coat hanger in through the fill hole on the side, It should be neally to the top of the hole right?

[ss905l]

they need to be filled to the bottom of the filler plug, when u check it make sure the car hasnt been driven all day otherwise you wont get an accurate reading..

[Deneo]

I drove it about 200 meters to hear the sound again and nothing, But still, I got the coat hanger to the bottom of the diff pan and no oil at all.

[Brett_jjj]

Dont drive it until you get some proper LSD oil in it.The damage might already be done though.

[Deneo]

How many litres do they take?

Thanks.

[ss905l]

a bit over 500ml I think, not quite sure. i used the whole bottle plus a bix extra to get to the bottom of the filler hole.

[Deneo]

sweet as, i'll get some first thing tomorrow. Thanks for the help fellas.

[Spinb]

How did you go after putting oil in?

[hq-racing]

MMmm I think what you are hearing is whats called diff chatter.
This is caused by the Limmy slip cones binding to the differential end gears.
This is a common problem with Holden LSD Diff's after a oil change and is not a big problem to fix.
GMH have a product called Diff Chatter Pack which is just re-labeled
Penrite LIMSLIP ADDITIVE 7098
Used to alleviate problems associated with chatter in all limited slip and spin resistant differentials.
So you can save your self a lot of cash by getting the stuff from Penrite direct and giving the expensive GMH re-branded stuff a wide birth.
LIMSLIP ADDITIVE 7098 - Penrite Oil

do you just put that in or mix it with diff oil?
whats a good lsd oil to use?

[Deneo]

Put the oil in, Still go a whine in the diff but not as bad as before. Since then iv'e developed a sound from the front of the car, Im thinking i just torch it haha.

[Spinb]

I would mix the additive with the diff oil. Is the sound from the front coming from around the gearbox? If so I would check the drive shaft.

Good luck.

[Sladdo]

Maybe do a few oil changes till its good?? Maybe it never had an oil change before. Gave my LSD a few oil changes when i first got it only cuz it looked as if it had sat out in the weather for a bit. Turns out to be a great LSD - really tight. I change the oil every 10,000km though. After a long drive my diff gets that chatter but I heard when you put that additive in it loosens them up a bit?? Is that chatter bad for the diff?

[zapper-l67]

do you just put that in or mix it with diff oil?
whats a good lsd oil to use?

You didn't think before you wrote that did you. LOL

[BlackVXGTS]

You'll need around 1.65l of oil. Castrol SAF/XA (synthetic) is the recommended oil and doesn't need any additive. Alternatively you could use cheaper oil like Castrol LSX90 together with an additive.