problem jeep tj 4.0 2004 wheel size does not update

[titocapotito18]

My 2004 jeep tj I can't update the wheel size or gear ratio, I have mpvi3 and the most current beta version, but I can't, anyone with the same problem?

[Gordon-0]

did you ever figure this out? Seems like it should be possible

[Shortyno10]

i believe you have to physically change the speedo gear in the transfer case for whatever gear ratio / tire size you are running. should be a chart online to tell you what size speedo gear you need.

[Gordon-0]

Issue is that I don't have any gears to change, I have a rubicon style electronic sending unit that reads off a pickup wheel with a fixed number of teeth.
Dakota Digital makes a converter box that will alter the electronic signal, just would be nice to be able to edit the values in the ECM since it clearly should be possible.

[Shortyno10]

whats your year, make, model?

[Gordon-0]

02 wrangler, 4.0, 5-speed.

I have a non-stock transfer case which doesn't have any gears to change.

https://www.jbconversions.com/produc..._short_sye.php