Morris Minor Owners Club

fitted my cable and now the speedo moves even when car is not
in drive? had it jacked up and when in drive the speedo bounces
all over the place
you thoughts please

My immediate reaction is that the gearbox end of the new cable is not correctly engaged.
Also..did you correctly follow the original route for the cable, with " soft " bends and no nasty "sharp" ones ?

Undo the cable end and pull back the nut as far as it will go.Gently re-engage the inner cable and "feel "the correct location.Maintain the pressure and thighten the nut.
Bob

Have you tested the speedo with a (reverse running) electric drill??