[Healeys] Speedometer gearing

[healeyguy at bredband.net (Per Schoerner)]

Hi
OK, on my car the prop shaft needs to be turned 16 times to turn the 
speedometer drive 5 full turns. That's a gear ratio of 3.2:1. It appears 
that my friend still have his old non overdrive gearbox in a corner 
somewhere in his garage. He will try to find it and count the turns for me.

Best regards, Per