Hello there! I own a Trailhawk too, and one of the things I plan on purchasing is this swing hitch tire carrier. wilcooffroad.com/shop/hitchgate-solo
Wilco sells for different brands and ect. But get the universal, hitch gate solo. It's around 500$, you could probably get it cheaper at carId.com or another website. But ive seen many other jeeps with this hitch tire carrier from renegades to cherokees KL.
Me personally, Id like to carry the tire in the hitch cause I can use the space inside for other things, specially if im gonna go camping and ect. Anyways, hope this helps!