2003 pickup 1500 4wd abs light problems

[AllOutPerformance]

I recalibrate the speedo for gears and tire size like I normally would.speedo is perfect but the front wheel speed is like 8 mph or more slower then the rear and pops abs light.I've never had this happen.I'm using the speedo cal function in the tuner aswell...any input would be great thanks...

[joecar]

If tire size is now different then ABS controller must be made aware (I don't know if going to a GM dealer is an option...?).

[AllOutPerformance]

If tire size is now different then ABS controller must be made aware (I don't know if going to a GM dealer is an option...?).
H0106 reduced by 18% from factory settings fixed it.secondary pulse