06 5.4L Magnacharged
8" CST
20" wheels
35" tires
4.56 gears


i dont do much off roading any more.. the power was actually to much having the blower.. lol...

 

Thanks!! Nice truck btw

 

I am lifted running a Roush. I only have 33" tires now but I don't see any problems.

 

It is not necessary to "re-gear" to install the supercharger.
I run 35's on mine and have not had an issue, nor do I expect an issue with the transmission due to the supercharger. And yea, I like to bury my foot in it quite often. What you don't want to do is downshift from overdrive to second gear which has a negative effect on these transmissions. Use some common sense and you will be fine. 30,000 supercharged miles and going strong on mine.