Speedo calib.

[tspring]

LBZ '06. When trying to adjust my speedometer using the speedo tool, actual vs. indicated speed, I cannot get the calibration to stick. Everything shows as it should on the computer, I guess, but no changes are evident. Any ideas? Thanks.

[The Neens]

I go to the tire manufacturer's website and find out revs per mile and enter that number in H0136...

[06Dmaxpwr]

As 'The Neens' said that is easy to do or you could open the speedo calc and type in your sizes like you did already and copy the new revs per mile and past it into that H0136 table as mentioned rather than pressing apply which dosent work....