What kit did you order?
You have a power rack & pinion steering steering system in your truck, depending on the lift kit you ordered it "should" have the parts to address your lift.
Probably a set of spacers to drop the rack down from the frame a few inches. The rack more than likely wont be relocated the full 4-5" of the lift. This will affect your alignment some.
The other method, again depending on lift purchased, is to use new "lifted" spindles, this also affects alignment.
When going for tire clearance on IFS trucks I normally use a few different methods to get big tires underneath.
My present 99 Tacoma rides on 36" tires most of the time but has room for 40" tires if desired, I started with a 2" spacer lift, then added a 2" coil/strut lift, enough to lift but not throw settings out of geometry, then I added a 3" body lift, and capped it off by trimming out everything not required in the wheel well that would rub the tires while they were stuffed.
I used custom fabbed 1.5" CV extensions to prevent the cvs from pulling out on extension.
I also added a custom fabbed 2" solid bar extension for the rack & pinion to bolt to, this reduces steering flex with larger tires.
Note I said I normally use 36" tires but can fit 40", on IFS I wouldnt recommend over 34/35" tires, preferably 33" to tell the truth. I have custom CV's and cryo hardened gears on my truck, this is the only reason my IFS has survived with this set up. I rarely use my 40's and expect suspension damage if I put them on, if it doesnt break thats just a good day and I dodged an expensive repair.