C43 Transmission swaps?
I have a 1998 C43 AMG with a bad sun gear, ring gear and planetary gear. I am looking for an INFORMED person who know what transmission you can use as a temporary fix while I save some money for Southern Hotrod to do this thing right! After some research I am no comfortable with the intel I have which is the following and Seattle MB has said well scratch scratch we dont know if the computers are the same and will interface yuck yuck. So here is what I got so far. Somebody end my misery please.
Transmission (722.631)
- Manumatic gearbox with full automatic and manual speed selector positions
- 'Winter' and 'Standard' positions button. 'Winter' starts in 2nd and upshifts more quickly when used as a full automatic gearbox.
- 1st gear 3.59
- 2nd gear 2.19
- 3rd gear 1.41
- 4th gear 1.00
- 5th gear 0.83
Transmission
- 5 and 6 speed (optional) auto 722.609 (same as C43, E55, SL/S600/c)
- Final drive ratio 2.82
- 1st gear 3.59
- 2nd gear 2.19
- 3rd gear 1.41
- 4th gear 1.00
- 5th gear 0.83
- 6th gear 1.33
- Reverse gear 3.16
Thank you in advance.
Mike Davis

I have a 1998 C43 AMG with a bad sun gear, ring gear and planetary gear. I am looking for an INFORMED person who know what transmission you can use as a temporary fix while I save some money for Southern Hotrod to do this thing right! After some research I am no comfortable with the intel I have which is the following and Seattle MB has said well scratch scratch we dont know if the computers are the same and will interface yuck yuck. So here is what I got so far. Somebody end my misery please.
Transmission (722.631)
- Manumatic gearbox with full automatic and manual speed selector positions
- 'Winter' and 'Standard' positions button. 'Winter' starts in 2nd and upshifts more quickly when used as a full automatic gearbox.
- 1st gear 3.59
- 2nd gear 2.19
- 3rd gear 1.41
- 4th gear 1.00
- 5th gear 0.83
Transmission
- 5 and 6 speed (optional) auto 722.609 (same as C43, E55, SL/S600/c)
- Final drive ratio 2.82
- 1st gear 3.59
- 2nd gear 2.19
- 3rd gear 1.41
- 4th gear 1.00
- 5th gear 0.83
- 6th gear 1.33
- Reverse gear 3.16
Thank you in advance.
Mike Davis

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BTW good to see another C43 with an Oregon owner. When I lived there and drove mine, I think I only saw about 2 others the entire time.
Last edited by FLYNAVY; Jun 2, 2010 at 07:32 PM.

BTW good to see another C43 with an Oregon owner. When I lived there and drove mine, I think I only saw about 2 others the entire time.
How long ago did you live in Oregon and where do you live now?

BTW good to see another C43 with an Oregon owner. When I lived there and drove mine, I think I only saw about 2 others the entire time.
Anything is feasible....... I use to have this mechanic that had this saying that I think it holds true, "It's a matter of cubic dollars". If you think about it, its very true. I can get a honda civic to SMOKE a Ferrari, I'll have to drop about $20,000+ into the civic but "it's a matter of cubic dollars". So it comes down to how bad do you want it
Agreed about the $$$, and that's kind of what I meant about feasible. I'd consider it for 5-7k but I don't think I could justify spending much more than that on such a project.

Agreed about the $$$, and that's kind of what I meant about feasible. I'd consider it for 5-7k but I don't think I could justify spending much more than that on such a project.






