Early Gladiators (primarily 2020–2021 model years) experienced frame bends and cracks linked to towing with excessive tongue weight. Stellantis investigated and issued a recall covering affected vehicles. If you own an early JT and tow, verify the recall status and practice tongue weight discipline — the tow rating is real, but the tongue weight limit is where people get into trouble.
Stellantis received reports of Gladiator frames showing deformation — bending and cracking — primarily at the rear frame rails behind the cab, near the hitch receiver mounting area. The failures were associated with towing scenarios where tongue weight exceeded the recommended limit.
The Gladiator frame is a pickup-truck ladder frame, but the JT's wheelbase is shorter than most truck platforms. The shorter rear overhang concentrates tongue weight stress at a tighter section of the frame. When tongue weight runs high — especially with heavier trailers or loads positioned too far back in the trailer — that stress can exceed what the frame tolerates.
The NHTSA investigation (NHTSA ID PE21-002) covered early production Gladiators. Stellantis conducted an Engineering Analysis and issued a service action. Check the NHTSA recall database with your VIN to confirm whether your truck is affected and whether the service action has been completed.
Total tow rating gets the headlines. Tongue weight is where the actual failures happened.
The Gladiator's tongue weight limit is 10% of trailer weight, with a max that varies by configuration. On a 5,000 lb trailer, that means 500 lb maximum tongue weight. On a 7,650 lb trailer (Sport with Max Tow), that's 765 lb.
The common mistake: People load trailers and then add gear at the rear of the trailer to "balance" it. This pushes weight toward the tongue and over the limit. The trailer should be loaded with 60% of its weight ahead of the axle — this is how tongue weight stays in the 10–12% range.
A tongue weight scale is a $30–$60 tool that attaches to the ball mount and lets you read tongue weight directly before you put the truck under load. If you tow regularly, this is worth having.
If you can't weigh it, use the 60/40 rule: place the heavier items in the front half of the trailer (ahead of the axle), lighter items in the rear. Run the numbers: trailer weight × 0.10 = maximum tongue weight in lb.
On early Gladiators, inspect the rear frame rails behind the cab:
A frame that has bent does not bend back. If you find deformation, stop towing until the truck is inspected by a qualified shop and the frame is evaluated.
For trailers near the top of the JT's rating, a weight-distributing (WD) hitch changes how tongue load is carried. Instead of dumping the full tongue weight onto the rear hitch and the short rear overhang, a WD hitch uses spring bars to transfer part of that load forward to the front axle and back to the trailer axle. On the JT specifically — where the concern is stress concentrated at the rear frame section — a properly set WD hitch reduces rear-frame loading and restores front-axle steering and braking authority that a heavy tongue would otherwise lift away.
A WD hitch does not raise your tongue weight limit or your tow rating. It manages how the rated load is distributed. Match the spring bar rating to your actual measured tongue weight — bars rated far above your load over-correct and ride harshly; bars rated below won't distribute properly. If you're towing anything past ~3,500 lb regularly, price a WD hitch alongside the trailer. The payload and towing reality guide works through how quickly passengers, gear, and tongue weight eat into the JT's real-world payload before you ever hit the tow number.
If you towed over spec — even once, even briefly — inspect before you assume the frame is fine. Overload damage is cumulative and doesn't always show as a dramatic bend. Look for paint cracking or flaking along the frame rail flanges behind the cab, elongated or egg-shaped holes at the hitch mounting bolts, and any daylight or gap change at the rear crossmember-to-rail joints. A frame that has yielded will often show a subtle waviness in the rail that a straightedge laid along the flange will reveal. Any of these findings means a qualified frame shop, not a wait-and-see. A compromised frame also changes how the truck behaves under recovery loads — review recovery gear essentials before you rig to a truck whose structure you're unsure of.
Written and maintained by an AZ wheeler and driveway wrencher. Always cross-reference your factory service manual — modifications affect vehicle safety and warranty. Work at your own risk.
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