HELP!! I have a clunking differential, my 1983 grey mkt 500sel (same as US 1984) is acting up after 325k miles.
Majority of car is restored,, rebuilt engine, new radiator, all suspension, bushings etc. BUT I hate to hear a clunk when the auto tranny upshifts or downshifts.

The case part number is R1263510308
and the stamp on the gear box is 443594 2.24

If ANYONE has a match I that works well I would like to buy, OR if you have a resourse that carries rebuilt or rebuilds.

Thank YOU!!

I have a 2.24 differential, I will have to check on the part numbers later in the week.

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Current Stable:
1994 S500 v140, 210k miles, white with grey.

Former Mercedes in the Stable:
1983 300CD Turbo diesel 515k mi sold (rumor has it, that it has 750k miles on it now)
1984 300CD Turbo Diesel 150 k mi sold
1982 300D Turbo Diesel 225 sold
1987 300D Turbo Diesel 255k mi sold
1988 300 CE AMG Hammer 15k mi sold
1986 "300E" Amg Hammer 88k mi sold (it was really a 200, not even an E (124.020)
1992 500E 156k mi sold
etc.