ChiCho55AMG

One month ago,i found a differential for a w203 C55 AMG 2005 with her 2 drive shafts...It might sound weird or crazy,i had no problem in my differential,the reason i changed it because i got it for a good price,plus to the 05 diff cooling system,my 209 clk55 is 2004,the differential come normal and no cooling system,and later on i will be on sc swap,so my question is the car is running very well and no prob,but what do u think guys ? Will it give any improvement ? What about the gear ratio between my old differential(the stock 2004 of clk55 that comes with no cooling system) and my new one in my car now(w203 c55 2005 differential that has the cooling system)

Thanks Everyone

ChiCho55AMG

Alright this gonna explain what i did:

1st pic my old stock 04 differential
2nd pic the new c55 differential
3rd pic differential cooling
Last 2 pics the new c55 differential installed on my clk55 04 with here 2 driveshafts.

A required wash needed from down after the installation

betrezra

To compare gear ratio you can count revolutions of input to output of each rear end.
Nice swap.

ChiCho55AMG

Thanks

2PRECISE

the gear size is stamped on the bottom right corner of the diff on the face where the diff cover bolts too

blackbenzz

Same gear if its shifting fine without tcu tune.

ChiCho55AMG

Yes the car is shifting very well(NO TCUE TUNE),but i have a feeling its better than before... But i will be getting a tcu tune soon,do u think it will make any difference and i should tell the tunner about my differential upgrade ?