Lsd

[txhog]

I have a VS ute and have it lowered a bit, Im finding it has limited articulation and sometimes bogs on driveways as one wheel comes off ground.

Its used commercial use so looks bit stupid pilling bricks/logs under the wheel at a building site or customers driveway

Has anyone put an LSD centre in, and would this help the bogging or would the LSD be no good in this situation.

[SAV_117]

why not raise it

[jokerflingo]

Sorry to bud in guys but i have a Holden VS Series 2 1997 Ute - 5 Speed Manual and well i was wondering would it have a LSD and if so how can i check apart from doing a burnout etc.

Thanks
Matt

[SAV_117]

ohhh i know that one i think
lift the back of the car up and spin one wheel if the other goes backwards its LSD obviously handbreak has to be off or it should say it on the diff

[axemurderer101]

ohhh i know that one i think
lift the back of the car up and spin one wheel if the other goes backwards its LSD obviously handbreak has to be off or it should say it on the diff

actually thats an open diff u just described lol in an lsd if you turn one forward the other other should go in the same direction unless the lsd is stuffed

[jokerflingo]

actually thats an open diff u just described lol in an lsd if you turn one forward the other other should go in the same direction unless the lsd is stuffed

Well i did the test and well im confused. What is it if i spin one wheel forward or backwards and the other doesn't spin at all? And Vica Versa?

Under the diff it has written high performance on the tag?

Thanks
Matt

[vnv8driver]

If BOTH rears spin in the same direction, its an lsd, if it has little resistance when spinning, the lsd is buggered.

If your spinning one rear wheel and the other turn the OPPOSITE direction (or not at all), its an open centre...


Correct me if im wrong but doesnt every holden commo ute have an lsd?? pretty stupid if they dont i recon, ford have had lsd stock in utes since the xd!

[VN_Luke]

The ZOMGWTFBBQLOL how to tell if i have an LSD thread:

[vnv8driver]

Under the diff it has written high performance on the tag?

They all have a tag but the tags can be very misleading, in theory it has to say high performance lsd for it to be a factory lsd, but my v8 says high performance only and both rears spin in the same direction, ive also heard of other commodore drivers reporting the same.

[VN_Luke]

My LSD only had a 'high performance' tag on it.

Also after a few slideways corners it single span everywhere - when you jacked up the car and turned one wheel one way, the other turned opposite....

the cones had worn away so far that they weren't doing anything at all.

this is why the 'spin one wheel and the other will spin the same way' method isn't 100% accurate. (but in most cases works well none the less)

[1991_Vn2nV]

Well i did the test and well im confused. What is it if i spin one wheel forward or backwards and the other doesn't spin at all? And Vica Versa?

Under the diff it has written high performance on the tag?

Thanks
Matt

Its a single spinner.

[vnv8driver]

My LSD only had a 'high performance' tag on it.

Also after a few slideways corners it single span everywhere - when you jacked up the car and turned one wheel one way, the other turned opposite....

the cones had worn away so far that they weren't doing anything at all.

this is why the 'spin one wheel and the other will spin the same way' method isn't 100% accurate. (but in most cases works well none the less)

I found out the hard way (definite answer) by taking a corner in the wet with 205's on the rear using about half a centremetre of throttle, the rears instantly spun out and i ended up going right around this roundabout with one sleek drift without hitting anything, it was a bit of a surprise as i didnt mean to do it but i thought it was pretty cool afterwards lol.


My vq statesman on the other hand WOULD spin twins on the spot (single pegger), but around a corner or nailing it off the mark only spun one and didnt kick out, plus it didnt spin out as easy as the calais in the wet.

So in saying it can be confusing to some people, better off filling up with the correct fluid instead of ****ing it up

[jokerflingo]

Its a single spinner.

You sure about this as i thought that maybe being a ute is would be a LSD and the fact that it felt like the clutches that i presume were engaged whilst sitting jacked up on the diff was stopping the other wheel turning the same direction. Where as if it was an open centre wouldn't the other wheel turn the opposite way freely since there would be no clutches?

Thanks for the feedback
Matt

[ScoHar]

My old VR with solid axel LSD, didn't spin both wheels when jacked up one turned the other didn't move at all, I opened up diff and 100% sure LSD there, probabley knacked, but my IRS VP with LSD spins both wheels in same direction.

[1991_Vn2nV]

You sure about this as i thought that maybe being a ute is would be a LSD and the fact that it felt like the clutches that i presume were engaged whilst sitting jacked up on the diff was stopping the other wheel turning the same direction. Where as if it was an open centre wouldn't the other wheel turn the opposite way freely since there would be no clutches?

Thanks for the feedback
Matt

Well you can't be 100% sure unless you open it up...But at the end of the day regardless of whether its an LSD centre or not it is only spinning one wheel. The fact its not spinning the wheel the opposite way, doesn't say "High Performance LSD" (not just high performance) and the fact there would appear to be no mention of using an LSD approved oil on the diff tag would suggest to me though that it is a single spinner. 9x out of 10 thats what it'd be, but it may just be that 1 out of 10!

[JT090]

my ute doesnt have an lsd only the s packs had them standard on the vs's was an option on the base model

[jokerflingo]

my ute doesnt have an lsd only the s packs had them standard on the vs's was an option on the base model

Are there any sources of this info as i have another source that says VR onwards all the utes had LSD's?

Also just to be on the safe side should i buy the recommended LSD diff oil if i do a diff oil change? I presume this will work on both a LSD diff and open centre diff? Where as there could be problems if i used normal diff oil in a LSD diff?

Thanks
Matt

[vnv8driver]

If your in doubt take it to a mechanic so they can remove the cover and inspect what setup you have you cant afford to fill up with the wrong grade of oil otherwise youll be up for a rebuild (not so bad if you want that lsd)

[jokerflingo]

If your in doubt take it to a mechanic so they can remove the cover and inspect what setup you have you cant afford to fill up with the wrong grade of oil otherwise youll be up for a rebuild (not so bad if you want that lsd)

Ouch really? So if i put the lsd oil in and its an open centre diff ill cause damage and if i do it vica versa and put open centre oil in and its a lsd ill cause damage again? I would of thought that the lsd type oil which i presume is better and made to work nicely with clutches etc would of worked alright in both.

Whats involved in taking the cover off to investigate as my father and i were thinking of doing the oil this weekend.

Thanks
Matt

[fuzzy2308]

9 bolts to undo and i think there is a ummmm seal thingie i cant thing of the name.
its been a while so correct if wrong

[VN_Luke]

Ouch really? So if i put the lsd oil in and its an open centre diff ill cause damage and if i do it vica versa and put open centre oil in and its a lsd ill cause damage again? I would of thought that the lsd type oil which i presume is better and made to work nicely with clutches etc would of worked alright in both.

Whats involved in taking the cover off to investigate as my father and i were thinking of doing the oil this weekend.

Thanks
Matt

Hey mate,

if you're doing the diff oil anyway then you can check whether it's LSD or not before you fill her up

-get a drain pan/bucket, put it under the diff center
-unbolt all the bolts for the center cover
-pry it off gently, and watch all the oil go into your container
-once it's all drained, inspect the diff center

if it looks like this (with the extra set of bolts) - i.e. a set of bolts to hold the big "crown gear" on, and an extra set of bolts to hold the LSD goodness inside in:





then you have an LSD, and should buy some LSD oil (or take her out to get reconditioned if you want)

if it looks like this: (i.e. no extra bolts, just the ones that hold the big gear on)



then you don't have an lsd - now is a good time to fit one, or fit a mini-spool

if you're unsure, take some pics and post up and we'll id it for you.

- once inspection is done and you're sure of what you have, give the mating faces of the cover and diff housing a good clean to get all the crap off and so it's spotless.
- get some hi-temp silicone RTV sealant, and if it's your kinda thing, you can also get a gasket from somewhere.
- apply (opt. gasket) and sealant along the mating faces liberally, and smoothen out coat by dabbing fingers all over the crap.
- put the cover back on and bolt up
- pop the fill cap out of the cover, and pump suitable diff oil into it until it starts to overflow from the eyelet
- pop fill cap back in
- beer-o-clock


on a side note - I reckon if I had to, I'd risk LSD oil in a non-lsd diff (seeing as it's got pretty much the same components, less the cones), but I would not risk non-lsd oil in an LSD.

[jokerflingo]

Hey mate,

if you're doing the diff oil anyway then you can check whether it's LSD or not before you fill her up

-get a drain pan/bucket, put it under the diff center
-unbolt all the bolts for the center cover
-pry it off gently, and watch all the oil go into your container
-once it's all drained, inspect the diff center

if it looks like this (with the extra set of bolts) - i.e. a set of bolts to hold the big "crown gear" on, and an extra set of bolts to hold the LSD goodness inside in:





then you have an LSD, and should buy some LSD oil (or take her out to get reconditioned if you want)

if it looks like this: (i.e. no extra bolts, just the ones that hold the big gear on)



then you don't have an lsd - now is a good time to fit one, or fit a mini-spool

if you're unsure, take some pics and post up and we'll id it for you.

- once inspection is done and you're sure of what you have, give the mating faces of the cover and diff housing a good clean to get all the crap off and so it's spotless.
- get some hi-temp silicone RTV sealant, and if it's your kinda thing, you can also get a gasket from somewhere.
- apply (opt. gasket) and sealant along the mating faces liberally, and smoothen out coat by dabbing fingers all over the crap.
- put the cover back on and bolt up
- pop the fill cap out of the cover, and pump suitable diff oil into it until it starts to overflow from the eyelet
- pop fill cap back in
- beer-o-clock


on a side note - I reckon if I had to, I'd risk LSD oil in a non-lsd diff (seeing as it's got pretty much the same components, less the cones), but I would not risk non-lsd oil in an LSD.

Awesome m8 great writeup and if i am unsure i may take up your offer to post a pic on here for idenification :P
Also you and i must think alike with the sentence in bold :P

Thanks heaps dude
Matt

[Andrew426]

Correct me if Im wrong on thisa one, but if you chek your build tag (stuck to the front of the firewall under the bonnet) you will see either GU4 for open diff or GU8 if its LSD.

Easy

[jokerflingo]

Correct me if Im wrong on thisa one, but if you chek your build tag (stuck to the front of the firewall under the bonnet) you will see either GU4 for open diff or GU8 if its LSD.

Easy

Is this definitely the same for the VS Utes? Cause i been reading around a lot and many people had LSD's and the GU4 tag?