w124 axle help!

[shadowredlev]

hey guys

new to the forum here and I was wondering if I can get a little help finding the correct axle for my car

I am also from the us

so I have a 1989 300CE US spec car, and I recently converted it to manual taken off of a 190e here in the US, but little did I know at the time the diff ratio is going to be to long, so I need a shorter diff, I found one on ebay and ordered it from Germany

Mercedes W124 E Klasse Differential Diff Hinterachsmittelstück - 1:3.67 ASD ABS | eBay

here is a link to the diff I ordered

Ii had my mechanic drop the diff and little did I know the axles don't match with my car, I tried ordering asd axles they still didn't work. I was wondering if anybody on this forum can help me find out the part number needed for the axle and where I can get it from

I probably need to order it from Germany too but I just cant find the correct part number

I think I read somewhere that the 230TE and 220TE has the axles that I need

thanks for the help in advance

Leon

 

[Charles Morgan]

300CE comes up with 3.07 ratio

230TE comes up on the EPC with a 3.46 ratio - There's a large choice of part numbers so I'll dig those out.

3.67 is the ratio that comes up from a 200e

I am surprised that they aren't compatible, is there a visible part number on the diff you have? It may not be from a W124.

 

[shadowredlev]

The part numbers that are visible are just for the case unfortunately :/

But the diff does mount up to the car and the drive shaft correctly, it's just the axles aren't compatible, I believe it's because it has ASD, when I search for w124 diffs with asd a majority of them look like they have the thicker looking "wings"

 

[WDB124066]

I think these guys will know what bolts to what, have you tried them?

Mercedes Replacment driveshafts

 

[WDB124066]

Post 61 approx...

http://www.mbclub.co.uk/forums/mbclub-projects/143857-billys-w124-coupe-project-29.html

 

[roadhog]

300CE comes up with 3.07 ratio

230TE comes up on the EPC with a 3.46 ratio - There's a large choice of part numbers so I'll dig those out.

3.67 is the ratio that comes up from a 200e

I am surprised that they aren't compatible, is there a visible part number on the diff you have? It may not be from a W124.

Those ratios are for cars with the standard gearbox fitted, they won't work with a manual conversion. 1:3.67 is the ratio for a S124 300TD (non turbo estate), 200E saloon should have 1:3.46.

The part numbers that are visible are just for the case unfortunately :/

But the diff does mount up to the car and the drive shaft correctly, it's just the axles aren't compatible, I believe it's because it has ASD, when I search for w124 diffs with asd a majority of them look like they have the thicker looking "wings"

You can't just bolt on an ASD diff to a car which doesn't have ASD. You can retrofit the system but that needs a few more parts for it to work.

To further complicate matters, there were two diff sizes on a 124 depending on model, 185mm and 210mm.

 

[shadowredlev]

Yeah that's the thing, I believe the one that I ordered is the smaller 185mm one? Not too sure :/ where would I measure it from?

And as far as ASD goes , I'm not trying to Access the full potential of the ASD I believe if I just put the diff on, plug the ASD line then the car would have a slight LSD feel to it, honestly I'm just looking to have a 3.67 diff in this car , and since I already spent a lot on the diff I was trying to get an easy way to install the axles on the car

I just can't figure out what car this was off of or what the part number would be for the compatible axles :/

Leon

 

[grober]

RATIO SHOULD BE STAMPED ON THE CASING SOMEWHERE?

See this thread
Limited Slip Differentials for W124's?? - Page 7 - MBWorld.org Forums

 

[roadhog]

Yeah that's the thing, I believe the one that I ordered is the smaller 185mm one? Not too sure :/ where would I measure it from?

The measurement is across the output, body of the diff only, not including the flanges. If you put the two diffs side by side you should easily make out any difference.

And as far as ASD goes , I'm not trying to Access the full potential of the ASD I believe if I just put the diff on, plug the ASD line then the car would have a slight LSD feel to it, honestly I'm just looking to have a 3.67 diff in this car , and since I already spent a lot on the diff I was trying to get an easy way to install the axles on the car

I don't think it works like that.

I just can't figure out what car this was off of or what the part number would be for the compatible axles :/

As above, 1:3.67 is off a 300D estate (wagon to you?). No idea on part numbers, others here have access to EPC so might be able to help there.

What exactly is the issue you're having with the axle shafts? Too long/short? Different flanges?

 

[grober]

The other possibility is to rebuild your own diff with a different crown and pinion set assuming such a thing is still available ?

 

[carat 3.6]

Assuming that it came from a 190 you need normal non asd drive shafts from a w124 320 to fit that diff in your 300ce, those will give you the correct shaft length. As long as you fill it with lsd spec gear oil, the diff will be able to function as a 25% lock lsd without the hydraulic line connected.

 

[roadhog]

Assuming that it came from a 190 you need normal non asd drive shafts from a w124 320 to fit that diff in your 300ce, those will give you the correct shaft length. As long as you fill it with lsd spec gear oil, the diff will be able to function as a 25% lock lsd without the hydraulic line connected.

The bay link claims it's for a 124. I've dealt with that company, they usually know their stuff.

Curious as to how the ASD diff will work without being hooked up to the rest of the system. Not arguing, just trying to learn. What would be the benefit of having a 'dumb' ASD?

 

[carat 3.6]

The bay link claims it's for a 124. I've dealt with that company, they usually know their stuff.

Curious as to how the ASD diff will work without being hooked up to the rest of the system. Not arguing, just trying to learn. What would be the benefit of having a 'dumb' ASD?

ASD diff's all have an independent 25% lsd, this is self contained and doesn't need hydraulic pressure. The hydraulics actuate clutch packs in the output housings to increase the diff's effective lock depending on line pressure, this can be up to 90%.

On the the 185mm diffs the lsd center section is found in the 16v 190e's. The 210mm lsd is interchangable with the w126.

 

[roadhog]

Off to find myself an ASD...