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Old 11-06-2003, 11:05 PM
chinook's Avatar
Registered User
Join Date: Oct 2003
Location: Portland Oregon
Posts: 3
Differential Gear swap 560 SEC


I sure spent alot of time looking around this Great site with little luck finding any information on Gear Swaps for A 560 SEC. This is what I know. To go from the stock gearing 2.47:1 to 3.06:1 on any 1986 through 1991 Mercedes 560 SEC.

I was told I could use the stock 560 Case and the Gears from the 107 SL's 450SL's 1972 through 1980 the 3.06:1 3.07:1 that seems to be the best way to go. I was told that the SL's offers no Limited slip 1972-1980. It would be nice to have a Limited slip is that possible?

Mercedes shops don't seem to offer this service & Finding the right guy to do the job without spending a ton of money is a problem. I was told a good BMW or VW shop may have the knowlege and tools to do the job. There is also the problem of a ABS hookup that needs to be machined.

I have a guy that works on VW rear ends with a great reputation and says he has the tools to do the job. If the pionion needs to machined where can it be sent to make the ABS work.

I just found this site, this is my first post. Any help would be appreciated.


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Old 11-07-2003, 11:00 AM
Steve Gutman's Avatar
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Join Date: Feb 2002
Location: Chicago, IL
Posts: 492
The SEC Site might help

There is a site just for SECs and there was an article on that topic. Do a search on this site and a search engine. If I find it I will post back.
1985 Mercedes 500SL Euro (Gray market)
1995 BMW 520i Euro (Gray market)
1992 BMW 525it Wagon
1994 Honda Del Sol Si
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Old 11-07-2003, 09:59 PM
BDBENZ's Avatar
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Join Date: Jul 2002
Location: Columbus, OH
Posts: 194
You should take a look at this sight.


87 560 SL
93 300E 2.8
91 300CE-24
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Old 11-08-2003, 12:30 AM
Registered User
Join Date: Jan 2003
Location: Okanogan County, WA
Posts: 108


You're in luck. get in touch with Randy's Ring and Pinion in Tacoma. I understand that they are THE place for rear-end work. My brother (from Dallas, OR) swears by them, as do many off-roaders in our area.

Happy Motoring

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Old 11-08-2003, 02:42 AM
chinook's Avatar
Registered User
Join Date: Oct 2003
Location: Portland Oregon
Posts: 3
Differential Gear Swap Info Needed

I belong to the MbCoupes site and know the guys at Bergwerks quite well.

I would like to put together most of the 3.06:gearing for my 560 SEC in my own area without spending alot on shipping.

If anyone knows who would have the proper tools to do the job other then using the Mercedes tools, which there are none to be found anywhere.

I hope someone has an idea.

Thanks for your help.
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