Pack extra fuel or a small cooler without giving up space. These cargo mounts include side brackets that use pre-installed bolt holes and slide behind rock rails, spare-tire trays that free up the hitch, and hitch options for 2" receivers. Confirm your wheel bolt pattern since some spare-tire mounts are built for a 5 on 5 inch Jeep pattern, and skip adapters that can cut your tongue weight in half; testing noted about 40lbs with 5 gal cans.
Most installs are straightforward, but plan time for alignment. Check that hardware matches and tighten so there's minimal wiggle; some tight channels may need a mallet to seat. If your can sits at an angle, make sure the door clears. For baskets, verify support arms alignment. If straps or drain holes are tight, adjust hardware to suit your use.
Sometimes, but it's not ideal. Some Jeep-specific carriers require a 2" hitch and an adapter can prevent key parts from being adjustable. Adapters also reduce tongue weight capacity by about half. If possible, use a 2" receiver to keep function and capacity.
Yes, there are side mounts that work with rock rails. Look for versions that bolt to pre-installed holes on the body and use a bottom bracket that slides in behind the rails. Check how far your rails extend near the front wheel well, and pick driver or passenger side to match your layout.
Capacity varies and isn't always posted. Some mounts have been tested with two 2 gal cans or a single 5 gal can at about 40 lbs. If you're planning heavier loads, verify the specific mount's stated testing or rating and consider how it attaches to your Jeep.
Pick a side mount if you want the can outside the cabin and easy access at the trailhead. A spare-tire mount keeps cargo centered and can preserve rearview visibility. For spare-tire mounts, confirm your Jeep's 5 on 5 wheel bolt pattern; a 6-lug pattern won't fit. With side mounts, check door swing so the can or tray doesn't rub.