TR6 speedometer calibrated for 3.45:1 differential

[dstauffa@csc.com]

Dear Listers,

I know this is a long shot but it doesn't hurt to try.   Is there anyone
out there that has and would like to sell an early TR6 speedo that is
calibrated for the 3.45 rear end ratio?  It can be in Ks or MPHs.

I know that I can take a 3.7 type speedo to a shop and have it recalibrated
but I wanted to try outright purchase first.

Thanks for allowing me to eat up your time.

Dave
Ramona, Ca