wheel size / gears question

[sgarlic]

I've got 3.73's, so I already have the speedcal installed. If I switch to 18x9's in the front, and 18x10's in the rear, which wheel sizes do I use to set the speedcal.. the front or the rear's?

Nevermind, I'm a moron, I just read the speedcal instructions.. it's the rears.

 

[tomustang]

ok