If your 2021 Silverado 1500 4x4 LTZ has a transfer case with a Neutral and a 4WD low setting, it can be flat towed. I don't have a way to look up what the 4WD style the LTZ models might have.
You'll need base plates like the Blue Ox # BLU54VR, a tow bar like the Blue Ox Alpha 2 tow bar, part # BX7380 which also includes the safety cables you'll need.
For lighting you can use the diode kit, # RM-15267, and not have to worry about cutting into the taillight housing. This will splice into... view full answer...
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