>>The B2 band servo piston has been redesigned, reducing the loss of pressure during release as part of the 3-4 shift<<

Interesting fact... what's the symptoms when this happens ?
As stated above - the roughness is mostly in 3-4 shift. Another thing that I observed is that the economy gauge is pretty sensitive with throttle possition - on a moderate acceleration, it would move to bold red area (possible vacumm leak here ?)

Anyone ? Steve ?

Thanks again,
Frank.

__________________
'86 560SEL | Silver Ext. / Blue Int. | 201K miles (Apr. 05) | 204K miles (Feb. 06)