How Can I Tell If I Have An LSD? [Merged 7-8]

[candela]

sorry don't mean to double post, but this should have been here in the first place, doh... QUESTION- how do you tell if there is a rear lsd on the car?

 

[ACM]

All DSM AWDs have a centre LSD, it was stock from day 1, 89-on.

Checking for the rear LSD is as zdrux says - there's a bright silver sticker on the upper left of the rear cover, it will say '3.545' (for manual trans cars) and immediately above that will be the word "Viscous" if a rear LSD is fitted. There's a second word next to Viscous, either Coupling or LSD, not sure.

Charles

 

[zdrux]

All DSM AWDs have a centre LSD, it was stock from day 1, 89-on.

Checking for the rear LSD is as zdrux says - there's a bright silver sticker on the upper left of the rear cover, it will say '3.545' (for manual trans cars) and immediately above that will be the word "Viscous" if a rear LSD is fitted. There's a second word next to Viscous, either Coupling or LSD, not sure.

Charles

Sorry, but there is no center-LSD-diff in ANY of ours cars. There is a center-diff yes, and a transfer-case but nowhere is there an actual LSD unit in any of those, EXCEPT for the rear-diff.

What the lsd does is limit slip between the rear wheels from side-to-side, in the middle we have the center-diff and the VC (Viscous Coupling) which works LIKE an lsd but is not at all that. It's a "cheaper" way of controlling tire-spin between front-rear but is not an actual LSD unit.

In other words, the center-diff is an "open-diff" type, whereas an lsd unit is not because both wheels will spin. With an AWD car, even though the power is split 50/50, it is not always 50/50 depending on situation, grip, turning, traction, etc.. etc.. therefore the front and rear wheels are allowed a bit of freedom to move from each other.

And the transfer-case does NOTHING other than "transfer" power to the rear, there's no lsd's OR diff's inside the transfer case.

 

[ACM]

Well if you want to be _that_ picky sunshine...

No DSMs ever had any LSDs fitted in any position - at least not by your definition. The DSM rear (supposed) LSD is actually an open diff with a Viscous Coupling in close(r) proximity, so by your definition there are no LSDs in DSMs. But the rear is clearly an open diff in basic design, just like the centre diff is (in this context), if one were to dismantle them - I have both on one of my benches if you care to pop over and take a look ?

Or do you define an LSD as being based on the physical proximity of the VC to the differential ?



The latter point we both agree wholeheartedly on, of course.


Charles, who apparently doesn't know an LSD from a hole in the wall.

Sorry, but there is no center-LSD-diff in ANY of ours cars. There is a center-diff yes, and a transfer-case but nowhere is there an actual LSD unit in any of those, EXCEPT for the rear-diff.

What the lsd does is limit slip between the rear wheels from side-to-side, in the middle we have the center-diff and the VC (Viscous Coupling) which works LIKE an lsd but is not at all that. It's a "cheaper" way of controlling tire-spin between front-rear but is not an actual LSD unit.

In other words, the center-diff is an "open-diff" type, whereas an lsd unit is not because both wheels will spin. With an AWD car, even though the power is split 50/50, it is not always 50/50 depending on situation, grip, turning, traction, etc.. etc.. therefore the front and rear wheels are allowed a bit of freedom to move from each other.

And the transfer-case does NOTHING other than "transfer" power to the rear, there's no lsd's OR diff's inside the transfer case.

 

[Defiant]

You kids play nice, or dreadful Defiant will take the marbles and send you home.

 

[boostjunkie02]

I need to know if my rearend has lsd or not. How id there a way to tell. I need help quick.

 

[2nd gen gst]

I heard from someone if you jack your rearend up and spin one tire the other one should spin, then you have LSD. Same with the front.

 

[CanadianTSi]

There should be a sticker on the driver side door jam.

 

[HighPsi92GST]

if you have the original owners manual, it tells you how to test it in there, which would of course also let you know if you have it. just another way of checking

 

[psi4mymitsu]

My 95 gsx has a badge on the pumpkin in the rear that says lsd.

 

[98autogstspyder]

shouldn't there be a warning label on the door jam of the driver's side of the car. My '92 has a orange sticker that says "warning this vehicle is equiped with a viscous style rear differential ..... "

 

[HighPsi92GST]

my 93 has the same sticker

 

[boostjunkie02]

I bought the rearend for mt auto to manual swap. The car I got it from is no longer a car, it got crushed. I can tell you that the auto one, you can look straight through. And the manual one has a pin or somthing in the middle of it. I need to know wich one is lsd so I can order a back axle.

 

[DSM_AWD_TSi]

I've read some awd DSM's have LSD stock, how do I check to see if my car has an LSD or not? If it doesn't, I plan to get a LSD when I change the clutch. How hard is it to intall a Phantom Grip type of LSD? Thanks.

 

[Slippi84]

First go and check to see if you have a 4 bolt rear because i'm not 100% sure which year the started the 4 bolts but i know 92 is in the ball park. Most of the early models that had ABS did not have LSD because they were not compatible at that time but later on they found a way to have both. So one way is to lift the hood and see if you have the ABS box which will be directly to the right of the left strut. If you need any pictures you can go to vfaq there is a page that has a picture index on what everything is under your hood. If your too lazy for that you can take it out go about 45 and just jack your breaks up and see if ABS kicks in .


PS . Please do not actualy do that check Vfaq
second a 4 bolt rear will simply have 4 bolts connecting your rear shafts to your diff.

 

[NOSLO2PT0]

Driver's side door jamb will have an orange sticker if the car originally came equipped with LSD.

 

[Boosted4]

it says LSD on the pumpkin.

Brandon

 

[Defiant]

Uncanny. The very same answers as all the other times this has been asked.

 

[Ronnie01]

Ok, i had my car up in the air today, and i grabed the front right wheel and my buddy was over at my front left wheel. I started spinning my tire and his was spinning, so i had him grab it while it was spinning and i know if you dont have a lsd when he held the front right wheel mine should have kept goin and his stopped, but mine stopped too. So does that mena i have a lsd?

 

[UNDER_PRESSURE]

You don't have LSD. Best way to find out is to take both shafts out and if you can see straight through the tranny from one end to the other then you know you have LSD.

 

[WMD]

Ya, you would know if you had a fully locking LSD because it would be hard to turn, since both dirve wheels and steering wheels get continous power.
Alot of cars these days will get power in both wheels in a straight line.

 

[Ronnie01]

oh btw this is a 92 talon tsi. not the one in my list

 

[mightymousestd]

both my wheels spin at any throttle position but just not at idle...who makes/sells lsd's for n/t cars?

 

[WMD]

I say WOT because i never broken tires loose with anything less, well except for dumping the clutch, but your right it works on resistance.

heres the infamous OBX LSD
http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=8002030377&category=33731

 

[mightymousestd]

yeah...but is it any good???

 

[blcknspo0ln]

research will say NO.