Installing HUGE Expensive Wheels on my LML Duramax!

Buying my dream wheel and tire setup. Definitely went out of my comfort zone here but I LOVE the end result! But what's needed to make them fit? Lift kit? Level?

Ekster Wallets: https://shop.ekster.com/mattross
Discount code: MATTROSS (25% off)

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Duramax Mods:
Spiked Lug Nuts: https://amzn.to/3NUeKOn
Sequential Signals: https://boostautoparts.com/products/switchback
Reverse Cargo Light Mod: https://boostautoparts.com/products/reverse
Turn Signal Mod: https://boostautoparts.com/products/dual-function-gm-wiring-harness-running-light-signal-for-oem-mirrors
McGaughy's Drop Shackles: https://amzn.to/3exNHv1 https://ebay.us/km3M51
12" Vertical Android Radio: https://ebay.us/TfrvSs
Bakflip Tonneau Cover: https://amzn.to/3CmkQ65 https://ebay.us/ZSO1mw
Lasfit H11 H9 H8 LED Bulb: https://lddy.no/1ct37
Lasfit 9005 HB3 LED bulbs: https://lddy.no/1ct36
Lasfit website: https://lddy.no/1cqdn - Discount Code - MattRoss (10% off!)
Auxito LED Bulb Kit: https://www.auxito.com/products/2015-2019-chevrolet-silverado-2500-3500-hd?variant=32520543600733

Garage Upgrades:
Retractable Pressure Washer: https://amzn.to/3EgZmH1
LED Ceiling Lights (set of 6): https://amzn.to/36m00GP
LED Cabinet Lights (set of 3): https://amzn.to/3irLWhg
Quick Jacks: https://amzn.to/36gkqBc
Wall Cabinets: https://amzn.to/2TwigqJ
Wall Mount Power Tool Rack: https://amzn.to/3dNLHvc
Retractable Air Hose Reel: https://amzn.to/3D6tZyh

Welding:
AHP 203XI Tig Welder: https://amzn.to/3zH7Zs4
Yeswelder Plasma Cutter: https://amzn.to/3Iz6xLt
Yeswelder LYG-Q800D Helmet: https://amzn.to/3FgB9zO
Klutch Welding Table: https://amzn.to/3r4qqTK
Tillman Tig Gloves: https://amzn.to/3f7ErL4
Tig Torch Holder: https://amzn.to/3qbhWex
Deburr Tool: https://amzn.to/3tiBLSO

Other Tools / Gear I use:
Eraser Wheel: https://amzn.to/3BvtxcH
Husky Toolbox (white/black): https://amzn.to/2V1p9Av https://ebay.us/oYNmGv
Tekton Swivel Ratchets: https://amzn.to/3uLXdNs https://ebay.us/3MHh5k
S.W.A.G Band Saw Table: https://amzn.to/3ku3Mkh https://ebay.us/NiEypw
Hanging Extension Cord Reel: https://amzn.to/2RebLXQ https://ebay.us/8Yv1X3
Universal Step Drill Bit Set: https://amzn.to/3ag12TJ https://ebay.us/4IjhVr
Magnetic Vice Jaw Inserts: https://amzn.to/2ZmUXPs

Cordless Tools:
Milwaukee Right Angle Grinder: https://amzn.to/3BwUgFj https://ebay.us/bRXqAz
Ryobi 1/2 Impact: https://amzn.to/2UG03Yg https://ebay.us/3FvRVy
Ryobi 3/8 Power Ratchet: https://amzn.to/3yek85O https://ebay.us/4YviJx
Ryobi 1/4 Impact: https://amzn.to/2UDRVHD https://ebay.us/11aLy0
Ryobi Angle Grinder: https://amzn.to/3gnoCAQ https://ebay.us/W59ocA
Ryobi Drill: https://amzn.to/3DhyWV1 https://ebay.us/rqIhti

Camera Gear:
Canon 250D SL3: https://amzn.to/2L477Jm http://ebay.us/vdqXH0
Sigma 18-35MM lens: https://amzn.to/3cSM1uY https://ebay.us/pjLbAT
DJI Ronin Gimbal: https://amzn.to/3zwyJff https://ebay.us/ppnxfj