Replacement speedometer - which ones work/fit?
 

The questions are:

1) What years/models will work with the Hall effect sender in a 722.323 transmission (from a '86 560SEL) - everything from 1981-on?

2) Which of those in 1) above will fit in the 107 chassis' gauge cluster (e.g., will a speedo from a 126 chassis fit, or is it the wrong size or wrong shape)?

I've emailed two different speedometer shops and neither has replied. Does that mean nothing will work?

Thanks.

M D Nugent
Renton, WA