Truck and trailer repair in Romeoville, IL

• Alignment. Steer toe, camber and caster, drive thrust angle and tandem parallelism, trailer axles to the kingpin.
• Frame and structure. Crack repair, section replacement and reinforcement on tractor rails, trailer crossmembers and sub-frames.
• Trailer hardware. Landing gear, door hardware, rear impact guards, kingpin and upper coupler.
• Coupling. Fifth wheel wear, lock jaw adjustment and mounting bolts, checked to 49 CFR 393.70.

Torn ABS harnesses go to the electrical repair bay in the same building; the worn air springs and bushings behind most alignment complaints go to suspension repair. A trailer dropped without the tractor, for brakes, lights, air lines, landing gear, doors or axle alignment, is written up on the trailer repair page.

• The truck pulls on a road with no crown, or the wheel sits off-center going straight.
• The trailer dog-tracks. From behind, the trailer tires ride outside the tractor tires on one side: a bent axle, a slider off its pins, or worn spring hangers.
• Drive tires show diagonal or heel-toe wear, which points at thrust angle, a bent housing or loose torque rods rather than pressure.
• Doors will not latch, the floor flexes under a forklift, or daylight shows through a crossmember gusset.

A pull after a pothole is usually a bent tie rod or shifted axle; a drift that grew over months is wear. The common fleet truck problems guide shows what each looks like early.

1. Pre-check. Tire pressures, ride height, kingpin play, bearing end play, U-bolt torque, torque rod ends. A shot kingpin or bushing stops the alignment and gets a written quote first — aligning around worn parts pays twice.
2. Measure. Rear axles first, thrust angle and tandem scrub, then steer toe, camber and caster. On a trailer, both axles against the kingpin.
3. Correct. Shim the torque rods to square the drives, set toe at the tie rod, shim caster where the design allows. Camber on a beam axle is not adjustable; a bad reading means a bent axle or a worn kingpin.
4. Road test on a road with no crown, then document the readings as a baseline.

Under 49 CFR 393.201 a frame may not be cracked, loose, sagging or broken, and flange holes and welded repairs have to follow the manufacturer's recommendations. Inspectors check frames at every scale house, so a crack is better found during a DOT inspection here.

• Crack in the web, away from a flange. Stop-drill, V-groove, weld with the right process for the alloy, add a fishplate or bolted reinforcement.
• Crack into a flange, or at a crossmember. Replace the crossmember and add a reinforcement section to the rail; never a weld across the flange.
• Multiple cracks, or corrosion thinning. A section replacement, or on an older trailer retirement. A straightened rail is weaker than it was, and we say so before you approve anything.

• Access. A crossmember under a sound floor is straightforward; under a rotted floor, the floor comes up too.
• Parts. Dry van landing gear, door hardware and impact guards are generally available; reefer, tanker and older specialty parts can wait on the manufacturer.
• What is really behind it. A trailer that keeps eating one tire may need alignment or spring hangers before tire service makes sense.

Turnaround follows the same list plus whether the trailer shows up loaded. An empty trailer dropped in the lot goes on the rack when a bay opens, sometimes the same day but never as a promise; a loaded one waits for the load.

• Stop and call: a frame crack you can see, a fifth wheel that moves on its mounts, a kingpin with a visible step or a lock that will not close, landing gear that will not hold the trailer.
• Come in this week: a new pull after a pothole, a wheel that just went off-center, a door that will not lock, trailer tires wearing on one side.
• Book with the next PM: slow feathering on the steers, a slight drift, a slider that is hard to move.

A crack or coupling defect found at roadside is an out-of-service order until it is repaired. The DOT inspection checklist covers the order they check it in.

We are shop-based: no roadside assistance, no mobile service, no pickup. The Romeoville fleet repair guide covers what this corridor does to a truck.

To get scheduled, request a quote or call (815) 887-0212, and bring tire wear photos if you have them. Everything else the shop does is on the services page.