Rear Bumper with Swing-Out Tire Carrier

The JK's factory rear bumper and tire carrier combination is designed for a 31"–33" spare mounted at the factory height. Once you move to 35" or 37" tires, the factory carrier's pivot hardware, rubber bump stops, and body-mount stress points are working outside their design limits. A dedicated swing-out tire carrier solves this by using a properly rated pivot — typically a 1.5" to 2" bearing-supported hinge — that distributes the weight of a full-size spare across a steel bumper body bolted to the frame. The Smittybilt XRC Gen3 at $799 is the high-volume entry option: it mounts to the factory frame holes, swings out to 90-plus degrees for tailgate access, and includes a 2" hitch receiver. For a JK that will carry a 35" spare on moderate trails, it's appropriately specified.

The key decision point in this category is spare tire weight. A 37x12.5R17 in a load range E mounted on a steel wheel weighs approximately 85–90 lbs. At that weight, a cheap pivot wears within 18–24 months and the carrier starts to sag, binding against the body and eventually stressing the mounting points. Poison Spyder, LOD, and Warn all use heavier-duty pivot hardware with greaseable zerks — they're designed to carry a 37" spare for the life of the build without adjustment. If your tire size is 37" or your build is a serious overlander where the carrier opens and closes repeatedly, the extra investment in the $1,100–$1,500 tier is justified by the pivot quality alone.

Safety chains and secondary latches are worth examining on any tire carrier. The carrier swinging open at highway speed — either from a failed latch or a missing safety chain — is a severe hazard. All listed options include a primary latch; Warn and LOD include secondary safety chain provisions by default. Smittybilt's base kit does not — add a safety chain attachment point before putting the rig on the road. Hitch integration on all listed bumpers uses a 2" receiver, but confirm the receiver is fully integrated into the bumper body and not a bolt-on addition — the LOD and Warn designs weld the receiver into the main bumper structure, which is the correct approach for towing.

On 2007–2011 JKs, the factory tailgate hinges and latch can bind with aftermarket bumpers if the swing-out arc is not correctly aligned. Budget extra time on the initial install to adjust the carrier latching geometry before final torque.

Steps

1. Open the factory tailgate and support it; remove the factory spare tire and carrier hardware.
2. Remove the factory rear bumper — four to six bolts at the frame rail.
3. Clean the frame mounting surfaces and inspect for rust or damage.
4. Lift the new bumper assembly into position — these are heavy (60–100 lbs); a second person is needed.
5. Thread all frame mounting bolts by hand before torquing.
6. Set the bumper level and torque all frame bolts to specification.
7. Install the tire carrier arm on the pivot — follow the manufacturer's torque spec for the pivot nut.
8. Mount the spare tire onto the carrier arm — verify the lug pattern and center bore match.
9. Close the carrier and adjust the latch position until the carrier closes flush with no gap at the body.
10. Install the safety chain or secondary latch provision.
11. Connect the factory backup lamp harness to the bumper's lighting provisions.
12. Test the carrier latch and swing clearance through full open and close range.

Why it works

• Properly rated pivot hardware handles 35" and 37" spare tire weight without sagging
• Integrated 2" hitch receiver provides towing capability without separate hitch addition
• Steel rear face adds genuine protection against rear collision damage on trail
• Swing-out design gives 90-plus degree opening for full tailgate access with spare mounted

Trade-offs

• Base Smittybilt option lacks factory secondary safety chain provision — add one before road use
• Carrier weight (bumper + tire) increases tongue weight effect on tail end of vehicle
• Alignment adjustment needed on 2007–2011 JKs for proper tailgate latch engagement
• Full kits run 60–100 lbs — installation significantly benefits from a second person

Tools required

• socket set
• torque wrench
• floor jack
• drill
• level
• wire harness tool

Parts

Sources

• Smittybilt XRC Gen3 Rear Bumper JK
• LOD Destroyer Rear Bumper JK

Related

• Budget Steel Front Bumper (≤$600)
• Premium Steel Front Bumper — Mid and High-End Options ($600–$2,000)
• Running 37" Tires on the JK — Lift Requirements and Fitment Notes
• All Jeep Wrangler JK guides & tools
• Browse the full DIY database

Written and maintained by an AZ wheeler and driveway wrencher. How we source guides. Always cross-reference your factory service manual — modifications affect vehicle safety and warranty. Work at your own risk.