My dealer sent me down the road to a spcialty shop and they told me I would need to have my computer reprogramed or buy an in-line adapter. So far the only one I have come across it the Superflex Truespeed.
[ QUOTE ]
Just got done installing RE 4.5 Lift and 33x12.50's on my 04 Rubicon. Auto Transmission shift points are all messed up. Is there a way to adjust the shift points to match new ratios?
[/ QUOTE ]
You need to reset the computer so it can relearn the shift points to compensate for your new tires. If your speedometer is reading correctly, you don't need to have the computer reprogrammed or get the inline corrector. Most Rubicons seem to be calibrated better for 33's than the stock 31's, so you shouldn't need to worry about the speedo.