>Can anyone comment on the need for an overdrive speedometer for the D type
>conversion I'm about to make? If I left the old non overdrive speedometer in,
>would speed be grossly off?
18% error.
>While they're not available though Moss, is it imperative that I search one
>out?
Your 66 will have a small number near the bottom of the gauge. This number is
the Turns Per Mile
(TPM).
Check http://www.mgb.bc.ca/reference/speedometers.html
Larry Hoy
>
>Does anyone have the appropriate Smiths numbers for my 66 MGB? Does anyone
>have a spare speedometer they want to sell?
>TIA, listers
>Bob Stahlbush
>66 MGB GHN3L 78708
>60 TR3A TS 81398L
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