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Which AWD's came with an LSD?

4.8K views 19 replies 13 participants last post by  4npower  
#1 ·
Does anyone know which years the AWD T/E/L's came with LSD differentials? DSM.org makes a reference that some model years came with them, but doesn't say which.
Cheers
Sabo
 
#2 ·
It doesn't depend on the year, it is based on which package the car came with. There are apparently 3 different levels on our cars, one of the letters in the VIN specify which one you have. This is what determines if you got the LSD package or not. There is also a sticker just inside the driver's doorjamb specifying if you have LSD or not.
 
#3 ·
goodbye is right, but I've never came across a non LSD dif in, I'm sure there's planty out there :)

Hey Steve, I guess you're the lucky owner of a (very best) 94Tsi, I'm sure you know the story behind that year model :)
 
#4 ·
To check for a LSD, look for an orange warning sticker on the inside door jamb of the driver's door. If it's there, you've got one, if it's not then you don't.

In 1990 and 1991, you could either get ABS or LSD, but not both. In 1992, they figured out how to offer both on the same car, so it's possible for 92-94's to have LSD and ABS. So, both were options from 1990-1994, but mutually exclusive in 90 and 91. I'm pretty sure you could get both on all 2G's, too.
 
#9 ·
Posi-lock is when the rear axle is 'locked'. A normal car has an open differential that both wheels can provide power but they don't at the same time. A car w/out lsd or posilock will spin one wheel but not the other. If you've ever gotten stuck in mud or snow you'll know what i mean. A LSD is like a posilock but is Limited slip, meaning both wheels will spin but not neccesary at the same speed.
 
#10 ·
Thats nice to have then. Then assuming a 90 has no LSD and a 94 has LSD.......
90 Fwd will only spin 1 front tire?
what will a 90 awd spin one front tire and one back tire?

then a 94 FWD will spin both front tyres?
and what will a 94 awd spin? all tires?

am i asking to many questions?
 
#12 ·
90 gs turbo--do you mean dsm made no fwd with lsd--or makers in general? Don't mean to be a smart ass or anything--but there are a LOT of lsd fwd cars--mostly in Japan though--one that comes to mind in the US is the 91-94 nissan ser. Also many integras and civics have lsd in japan. I imported an engine and tranny from japan for my integra and it has lsd from the factory

mark
 
#14 ·
Why would any manufacturer make FWD cars without a LSD. This to me is assanine if they don't. If the car is FWD and doesn't have LSD then you can assume the only gets traction from 1 tire. Correct? Does anybody other than myself see how that is not what anyone would want in a car?
 
#15 ·
Well thats half true. An LSD only helps when 1 tire has significantly more traction than another. I.E. One tire begins to spin, so the clutches in the LSD engage and transfer some power to the opposite tire. Most LSD's can handle about a 30-40% traction difference. Now if a tire completly loses traction, IE a wheel is off the ground than an LSD will behave like an open diff. Only a locker will help in these situations. But lockers suck on the street (4 wheelin only, or stip only cars) SO you can see. LSD is very helpful in real world driving because usually one tire does have more traction than another, at least when trying to go fast.

Later
 
#17 ·
the primary reason not to offer a l/s/d on a front drive is that they understeer when you are on the gas....they push really hard to the outside of the corner.
l/s/d in the rear dan, will allow you to be able to balance the car easier. just as the l/s/d in the front of the car causes understeer, in the rear it allows you to induce oversteer. with a sharp blip on the gas, you can bring the rear end around. the l/s/d causes both wheels to spin, so you can drift the rear end much like a rear drive.
say you are entering a corner, you brake and downshift. this has transferred the weight on to the front and as you approach the apex and go on the gas, the rear end slips a bit and the car turns a tighter radius. once you have passed the apex and the rear tires have hooked back up the car begins to go towards understeer and straightens itself out as you exit the corner. this is a gas........
l/s/d is a must have. need one? i have a '94 axle in the garage.....you know how to get here :) greg
 
#19 ·
Thanks for the reply Greg. Let me ask you one more thing since you seem to know this stuff pretty well.
I understand how LSD works in a FWD or RWD but how many wheels spin in an AWD car without LSD, and how many spin in an AWD car with LSD?
And about the 94 axle you have what model will it fit? Only AWD I assume right? And I can add it to a car that did not come with LSD? Without changing anything else?
 
#20 ·
awd

don't forget guys, us awd people have a "center" viscous lsd as well as a rear viscous lsd. also i've never seen a 2g awd without a rear lsd. i talked to my friend, the service manager at my local dealer and he also confirmed this to be true. also anyone with a service manual look in there and see if you can find any information a non-viscous lsd for the rear. i'll save you some time, there's nothing in there. also we couldn't find a part number or diagram for a non-lsd rear diff.