carguy300
Well-Known Member
Can anyone give me an idea what speedometer gear i would need for my 68 300. reads about 12-15 mph fast. I have 235/70-15's, should have 3.23 gears.
Can anyone give me an idea what speedometer gear i would need for my 68 300. reads about 12-15 mph fast. I have 235/70-15's, should have 3.23 gears.
Transmission pinion chart is attached. Note that today's radial tires have a lot lower profile and smaller circumference that the tires these cars came with so you probably need to go at least a tire size smaller to correct the speedo error. Click on mail006 to open, not the icon.
Dave
This car may have came with 14" wheels, I dont know. I dont have any history. my wife followed me to car show, her 70mph, me 82.
Can anyone give me an idea what speedometer gear i would need for my 68 300. reads about 12-15 mph fast. I have 235/70-15's, should have 3.23 gears.