speedometer gear 27 tooth

[Blaine.D]

I have been searching around the internet for a 27 tooth speedometer gear to correct my speedometer after I recently put bigger tires on my truck. The options are $30-$60 new and about $20 used. Does anyone know any vehicles with the same long shaft speedometer gear for cable driven speedometer that has 27 tooth on the gear?

[Pete M]

that's a good question.  I wonder what the common combinations would be from the factory...