Mechanically they are Identical inside with same amount of frictions. The components are of the same thickness.Hi.
Will SL600 V12 transmission fit V8 SL500?
You are welcome, yet you may have better luck playing with all shift points, and even incorporate a paddle shift to any R129 that DID NOT come with 722.6 as their are commercial 722.6 TCU's and even a DIY 722.6 TCU... The W126 diesel guys are doing this to rid themselves from the low-life 722.3's.Thanks. So, basically there is nothing much to upgrade besides electronic tuning chip.