When I brake hard, there is a thud noise under the gearshift type area.

How can I tell more specifically what to fix.

It may be a mount type thing.

The thud come when I stop "hard", stopping soft has no noise.

No noise when I stop when going in reverse - hard or soft.

There is no feel while driving, nothing in drive train or steering.

Just don't know what it is.

Noise "may have" been there before I changed the flex disk, and transmission mount.

Then again, I may have broken something when I fixed the flex disk.

Your wisdom is appreciated.

__________________
Thanks for the help
Bill Fisher

'86 560SL (186K) - Now a 'classic' : Registered as an Historic Vehicle
02 E430 in the stable
'14 LS460 (Lexus)
- - - - -
'95 E420 (198K) found a new home
'99 E320 (80K) (gave it's life for me as we hit a bumper)
'95 E420 (231K) Sold to a happy buyer, new to Mercedes
'90 300E (65K) Sold to an Mercedes Lover
'92 190E (215K) - retired to the salvage yard
'93 500SEL (214K) - Moved to another family, still runs like a young pup