You'll need these mods
3" strut spacer (leveling kit) less than $40 (go for the steel one its cheaper and more durable)
2" diff drop this is who sells the one i run $175 (https://ebay.com/usr/chevy4bolt)
3" body lift under $500
2" add a leaf for the rear roughly $60
8"wide 0mm offset rims (something like -10mm would actually work better to keep it off the frame at full lock you will need to cut more off your fenders tho)

I also highly recommend
full moog front end with new CVs (expensive)
4:10 gears or lower (even more expensive)
a 9-1/4 rear end swap if you have the v6 like me (cheap and easy)
Transmission coolers to deal with the extra heat. (Also cheap and easy)

Once you have all that installed you'll need to remove the mud flaps and trim the body front bumper and splash guards to clear a 35x12.50. Here are pics what you have to take off of everything except the bumper (also dont have pics of what i trimmed off the splash guard for my last set of tires)
The tire size I'm running is a 315/75r16 (34.6x12.4) but there is room for a larger true 35.

finished

What has to be trimmed off the front of the rear fender (should have taken a pic of the other side since my fender is smashed on this side)

front view with only part of the lift installed in the rear

front after trimming ( you also need to move the electrical connectors on the fender well to behind the body mount)

cut line for the front

what was cut off the front(this doesn't include the mud flap and 6" or so of splash guard i had to trim with my old 33s and 2" spacers)


Will edit this later when I'm not on my phone.

 

 

Welp its 2020 and other than a original right inner tierod wearing out no issues (suspension wise anyways). Still haven't regeared it. So still slower then a kid that missed the short bus.
also trimmed and remounted the mudflaps a couple months later with out them mud and water slosh into the door jam