Speedo/odo recalibration thoughts
I increased tire size from 17" stock to 19.5" tires. The speedometer is off by 2-3 mph; therefore, I presume the odometer and computer generated mpg readings are off also. Local mech wants $95 to rec...
Forum Discussion
A difference of 3-4% in your gearing is not going to make a significant difference to anything with regard to your vehicle's drive train. GM trucks come from the factory with a 3.73 or 4.10 rear end and that makes for a 25% difference in towing capacity but that is the only impact.
If you are showing 60 MPH on the speedo and have to remember that you are actually going 62 MPH it is no big thing. Same applies to driving 1000 miles per the odometer when you have really only driven about 960 miles. Your MPG will be understated by 4% but that too is no big deal.
If you are showing 60 MPH on the speedo and have to remember that you are actually going 62 MPH it is no big thing. Same applies to driving 1000 miles per the odometer when you have really only driven about 960 miles. Your MPG will be understated by 4% but that too is no big deal.
