I'm wondering if there is a way to use the spedo from a 300D n/a in a car with a 3.07 diff (the one from a 300D turbo). I know how to modify the odometer gearing so that it is accurate, but is there any way to modify the spedo so that it reads accurately?

As it is now I assume that the spedo will read 45mph when it's doing 55mph.

__________________
Onus probandi incumbit ei qui dicit, non ei qui negat

I recondition w123/w126/w124/w140/r107/r129/ steering boxes!


1984 300D "Elsa" odo reset 6/2011 147k
1983 300TD "Mitzi" ~268k OM603 powered
1995 E300 "Adelheid" 262k [Sold]