Speedo Drive (4 Viewers)

[Gordon499]

Hey all, wondering if a 17 tooth speedometer drive will make much difference over the original 16 tooth or if it will even work? This is for a ‘77.

 

[charliemeyer007]

It would likely fit. Yes it will be wrong. 4.11 gears vs 3.73 makes a giant difference (26%) in rpms vs torque as in top speed before the engine throws a rod or the low end grunt to crawl up a hill. 1/17 vs 1/16 is a lot less