I got a differential from what I think was a 1983 500SEC to swap into my 1985 300TD. I want to do seals (pinion and axle) for the SEC diff before I install it in the TD. Trouble is now I am wondering if the car I got it from at the Pick N Pull was a 380SEC that a coke-snorting Miami Vice guy put a 500SEC badge on. Can anyone with parts lookup capability tell me if it matters? I'm guessing the 1983 380SEC and the 1983 500SEC have the same diff, but I don't know for sure. Thanks!!!!

Never mind. Found an online source and it looks like the 1983 380SEC and the 1985 500SEC are the same. So I figure that any V8 126 in that year range is going to be the same.

Getting excited to have that 2.47 rear end in the wagon!

Hey snowtire good to see you here too.

Check out EverythingBenz - Mercedes-Benz Forum and Web Search Using Google

for lots of comparison pictures - and sometimes the part numbers are good too!

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1992 W201 190E 1.8 171,000 km - Daily driver
1981 W123 300D ~ 100,000 miles / 160,000 km - project car stripped to the bone
1965 Land Rover Series 2a Station Wagon CIS recovery therapy!
1961 Volvo PV544 Bare metal rat rod-ish thing

I'm here to chat about cars and to help others - I'm not here "to always be right" like an internet warrior



Don't leave that there - I'll take it to bits!

Your 85 TD will have a 2:88 Differential.
The Sec could be a 2:47.

Look at the lower left corner of the diff case, the number is spamped there.

Do you know how to set the friction preload on the pinion nut?

www.peachparts.com/shopforum/showthread.php?t=233540

Charlie

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there were three HP ratings on the OM616...

1) Not much power
2) Even less power
3) Not nearly enough power!! 240D w/auto

Anyone that thinks a 240D is slow drives too fast.

80 240D Naturally Exasperated, 4-Spd 388k DD 150mph spedo 3:58 Diff

We are advised to NOT judge ALL Muslims by the actions of a few lunatics, but we are encouraged to judge ALL gun owners by the actions of a few lunatics. Funny how that works