Hi everyone..I asked this question in the club but I should really post it here..

With all the snow we have had in the Northeast and especially in the DC area, I was wondering if any one had converted their sd to limited slip or if it is even possible without sacrificing much mpg. I know these are not the best cars in the snow but wish I had some type of slip control. Your thoughts??

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1999 E300 - MYDD until a week ago, Trans shot

Previously owned
1984 300SD - Someone from Ohio wanted/bought it
1986 300SDL
1992 190E 2.6 (my first mb)
1984 190E 2.3 (Didn't like this one too much)
1987 190D 2.5 Turbo (400k miles when sold)
1987 190D 2.5, 1986 190D 2.5 - 5 speed
1987 300D Turbo, 1990 300D 2.5 Turbo
My Blog - http://DieselDood.blogspot.com

Some gas W126 models and possibly W123 models came with 2.47 limited slips that'd fit the diesel. T Walgumuth swapped out the guts of a W201 LSD into his 3.69, do a search.

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1983 240D 3.0T 4-speed manual, now sold

1989 Subaru GL Wagon 5-speed Touring Edition

You'll do just as well by getting a set of real good snow tires + some weight in the trunk. Limited slip is not necessary if you have good tires.

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-diesel is not just a fuel, its a way of life-
'15 GLK250 Bluetec 118k - mine - (OC-123,800)
'17 Metris(VITO!) - 37k - wifes (OC-41k)
'09 Sprinter 3500 Winnebago View - 62k (OC - 67k)
'13 ML350 Bluetec - 95k - dad's (OC-98k)
'01 SL500 - 103k(km) - dad's (OC-110,000km)
'16 E400 4matic Sedan - 148k - Brothers (OC-155k)

My w126 came from the factory with LSD; no reason why you couldn't find a rear axle at a junkyard that's got it.

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- Brian


1989 500SEL Euro
1966 250SE Cabriolet
1958 BMW Isetta 600

Yeah... but I'd still like to have an LSD.

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1983 240D 3.0T 4-speed manual, now sold

1989 Subaru GL Wagon 5-speed Touring Edition

2.24 ratio?

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1983 123.133 California
- GreaseCar Veg System

How can you determine the ratio of the differential?
Does it have an info plate on the differential?

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Darrell

1984 300SD "Ole Girl"
207K

It is stamped on the lower left of the diff when looking at it from the rear of the car. It will say "2.24, 2.47, 2.65, 2.88, 3.07..." etc....

__________________
-diesel is not just a fuel, its a way of life-
'15 GLK250 Bluetec 118k - mine - (OC-123,800)
'17 Metris(VITO!) - 37k - wifes (OC-41k)
'09 Sprinter 3500 Winnebago View - 62k (OC - 67k)
'13 ML350 Bluetec - 95k - dad's (OC-98k)
'01 SL500 - 103k(km) - dad's (OC-110,000km)
'16 E400 4matic Sedan - 148k - Brothers (OC-155k)

I did quite a bit of research on it before doing mine...I did it for autocrossing...

I started with a 335 diff from the 190 16valve. The internals are exactly the same on that diff and the 123 diff so they can be swapped into the 123 housing within certain gear ratio ranges. I wanted the 369 gear ratio for autocrossing and that required a spacer behind the ring gear. I had that made and bought new longer bolts to hold it to the spider.

I also bought new clutches for the diff.

My favorite machinist swapped out all the guts and set it up.

I have my old autocross car for sale including this 369 limited slip diff but for the right price I would pull it out and sell the diff by itself.

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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.

The thing to remember when looking for a used limited slip is that the clutches are likely going to be shot and it will need to be rebuilt in order to function properly.

__________________
-diesel is not just a fuel, its a way of life-
'15 GLK250 Bluetec 118k - mine - (OC-123,800)
'17 Metris(VITO!) - 37k - wifes (OC-41k)
'09 Sprinter 3500 Winnebago View - 62k (OC - 67k)
'13 ML350 Bluetec - 95k - dad's (OC-98k)
'01 SL500 - 103k(km) - dad's (OC-110,000km)
'16 E400 4matic Sedan - 148k - Brothers (OC-155k)

I bought a used 2.47 unit from an 87 560SEL. I am close to installing it in my 87 SDL -- also bought new axles to do at the same time.

was that on a SD?

has anyone done the mod on an sd and sufferred any mpgs?

__________________
1999 E300 - MYDD until a week ago, Trans shot

Previously owned
1984 300SD - Someone from Ohio wanted/bought it
1986 300SDL
1992 190E 2.6 (my first mb)
1984 190E 2.3 (Didn't like this one too much)
1987 190D 2.5 Turbo (400k miles when sold)
1987 190D 2.5, 1986 190D 2.5 - 5 speed
1987 300D Turbo, 1990 300D 2.5 Turbo
My Blog - http://DieselDood.blogspot.com

Good advice..I may just have to settle for that.

__________________
1999 E300 - MYDD until a week ago, Trans shot

Previously owned
1984 300SD - Someone from Ohio wanted/bought it
1986 300SDL
1992 190E 2.6 (my first mb)
1984 190E 2.3 (Didn't like this one too much)
1987 190D 2.5 Turbo (400k miles when sold)
1987 190D 2.5, 1986 190D 2.5 - 5 speed
1987 300D Turbo, 1990 300D 2.5 Turbo
My Blog - http://DieselDood.blogspot.com

The 247 would have been from a 380 or 500 gasser. Limited slip diff should not impact fuel economy at all.

__________________
[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.

ok, so i have found what looks to be a euro 560 sel in a yard - i can verify the rear ratio by looking for the stamp. but more importantly - how do i distinguish the LSD diff from the open carrier unit without tearing the cover off, are there any markings or VIN designations ???