Pretty sure the stock size on my 06 Limited was 225/65/17.
So comparing the total diameter between that and your 215/70/16 is 28.52 inches vs. 27.85 inches.
Which means that your tires will make the speedo read 2.39% faster... See link below:
225-65R17 vs 215-70R16 - Tire and Wheel Plus Sizing | Tire Size Calculator
I do agree the difference is too big to be the tire sizes alone... See the speed example. At 62 mph on stock tire size, you're actually only going 60 mph.
So comparing the total diameter between that and your 215/70/16 is 28.52 inches vs. 27.85 inches.
Which means that your tires will make the speedo read 2.39% faster... See link below:
225-65R17 vs 215-70R16 - Tire and Wheel Plus Sizing | Tire Size Calculator
I do agree the difference is too big to be the tire sizes alone... See the speed example. At 62 mph on stock tire size, you're actually only going 60 mph.
