tire/wheel question

[S.V.T.]

hey all i have a 3lt hoe and am going from the stock 17"s to the stock 20"s, do you think i'll have to have the ecu reprogrammed so the speedo reads correctly, or will this not be an issue?
also what is the recommended psi for the stock 20"s?

thanks in advance.

 

[MDTAHOE1]

When I went from the stack size 17 to stock size 20 the overall assembly was the exact same size.You do not need to have anything programed. I run the same tire pressure as the 17 with no issue.

 

[wmgood64]

same as you ran in the 17's

 

[Jasnite]

As long as you stay within or close to the same overall diameter as the 17's you will be fine.

 

[S.V.T.]

thanks everyone.