IML: 62 Speedometer off by 10 mph

["Graham Quimby" <ghquimby@xxxxxxx>]

Fellow Imperialists,

The speedometer on my 62 Crown seems to be off by 10 mph at all speeds 
(except 0).  I have tested it at highway speeds (between 50 to 70 mph) 
and it is consistently 10 mph faster than the actual speed I’m 
traveling.  The transmission and real axle are original.  I have 
P235/75R15 radials. I’ve heard that a different tooth speedometer pinion 
may fix the problem since I have radial tires. I wanted to double check 
with the experts on the list what size pinion I should order.

Thanks,
Graham Quimby
1962 Caramel Crown 2 door Hardtop




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