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speedo off

 
happytruck383 happytruck383
User | Posts: 58 | Joined: 12/11
Posted: 10/27/12
04:23 PM

I have a 2001 chevy 1/2 ton it had 265/75/16 tires and 3.73 gears, I have upraded to 37/13/16 tires and 4.10's, and having trouble trying to figure out my speed, does anyone know a formula to figure it out?  

 
dan85burb dan85burb
New User | Posts: 3 | Joined: 10/12
Posted: 10/28/12
10:56 AM

I would suggest you get a re-calibrator, They are reasonably cheap and easy to use.
just input your old and new tire size and gearing, and it will reset the computer to give you your actual speed.