2003 h1

[evomind2]

i plan on doing the front locker, and undercarriage protection, where im kinda undecided is the lift.
i kinda want to do the 4" lift, with bigger tires....
does this change the driveline geometry?
where do i get the gears to account for the bigger tires?
what other parts will i need to do the job complete?
like if i go with 40" tires, do i need new wheels? (i wanna keep ctis)
do i need a longer steering shaft, etc etc....

also, has anyone tried and or know of anyone who has had success with the ecu upgrades??

thanks