Open Mon–Fri 9a–5p MOBILE SERVICE AVAILABLE
(919) 902-3944
Heavy-Duty Truck & Trailer Shop

We keep your rig road-ready.

Everything but the drivetrain.

Full-service repair and maintenance for 18-wheelers and trailers from 4 ft to 53 ft. Brakes, suspension, electrical, A/C, tires, DOT inspections, wiring and lighting — handled in-house by techs who know the road. You haul. We handle the rest.

Tractors
18-Wheelers
Trailers
4'53'
Inspections
DOT-Ready
Service
Shop + Mobile
What We Do

Four core services, one shop

From a full PM service on a Class 8 tractor to a custom light build on a utility trailer — if it rolls behind or under a truck, we service it.

01 / TRACTOR

18-Wheeler Full Service

Everything but the drivetrain

Complete maintenance and repair on Class 8 tractors — brakes, suspension, steering, electrical, climate, exhaust and aftertreatment, fifth wheel, tires and PM. We don't crack engines or pull transmissions; we keep every other system on the truck dialed in and DOT-compliant.

  • AIR BRAKES
  • SUSPENSION
  • ELECTRICAL
  • A/C & HEAT
  • AFTERTREATMENT
  • 5TH WHEEL
02 / TRAILER

Trailer Full Service · 4'–53'

Any size, any type

Utility, cargo, enclosed, flatbed, gooseneck, dump, reefer, dry van or lowboy — we cover the whole length. Brakes, axles, bearings, suspension, decking, doors, landing gear, structure and annual DOT inspections, all under one roof.

  • BRAKES
  • AXLES & BEARINGS
  • SUSPENSION
  • DECKING
  • DOORS & GEAR
  • DOT INSPECT
03 / ELECTRICAL

Trailer Wiring

Custom & general

From a quick connector swap to a full custom harness, we wire it clean and weatherproof. 4-way through 7-way plugs, brake-controller integration, breakaway systems, and dead-circuit troubleshooting that actually finds the short.

  • 4 → 7-WAY PLUGS
  • FULL REWIRES
  • CUSTOM HARNESS
  • BREAKAWAY
  • TROUBLESHOOTING
04 / LIGHTING

Light Packages

Built to spec, DOT-legal

LED conversions, clearance and marker lights, reverse and work lighting, conspicuity tape and full custom load-out packages. Bright, sealed, and built to pass inspection the first time.

  • LED CONVERSIONS
  • MARKER / ID BARS
  • WORK & FLOOD
  • REVERSE KITS
  • DOT CONSPICUITY
Full Service Means Full Service

The complete checklist

"Full service" isn't a slogan — it's every system that keeps a rig and trailer safe, legal and earning. Here's exactly what we maintain and repair, laid out the way it lands on a work order.

Tractor — 18-Wheeler

EXCL. DRIVETRAIN

Air Brake Systems

Chambers, slack adjusters, S-cams, drums, shoes, ABS sensors, air lines, valves and dryers — adjusted, repaired and tested.

Suspension & Steering

Air bags, leaf springs, shocks, kingpins, tie rods, drag links, bushings and ride-height — front to rear.

Electrical & Charging

Batteries, alternators, starters, harness repair, ground faults, ECM connectors and full cab wiring.

Cooling System

Radiators, water pumps, hoses, thermostats, fans and coolant service — external cooling, no internal engine work.

Tires, Wheels & Hubs

Mount, balance, rotate, wheel seals, hub service and torque to spec on steers, drives and tag axles.

Fifth Wheel & Coupling

Lube, inspection, jaw and lock rebuild, slider service and pivot repair for a safe, solid hook.

PM, DOT & Fluids

Scheduled preventive maintenance, annual DOT inspections, lube, filters and fluid services — full records.

Welding & Fabrication

Bracket repair, mount fabrication, cracked frame rail attention and custom mounting for the gear you run.

Trailer — 4' to 53'

ALL TYPES

Brake Systems

Electric, hydraulic and air brakes — shoes, drums, magnets, actuators, ABS and full brake-line service.

Axles, Hubs & Bearings

Bearing repack, seal replacement, spindle and hub service, axle alignment and complete axle swaps.

Suspension

Leaf spring, torsion and air-ride service — hangers, equalizers, bushings, shackles and air bag replacement.

Structure & Decking

Frame and crossmember repair, wood and steel deck replacement, stake pockets, rub rails and tie-down points.

Doors, Ramps & Landing Gear

Roll-up and swing doors, hinges and seals, ramp and gate repair, landing gear and jack service.

Walls & Roof (Enclosed)

Panel replacement, roof seam and leak repair, interior liner, vents and translucent roof work.

Tires & Wheels

Mount, balance, rotation, valve service and torque to spec — single or dual, any axle count.

Lighting & Wiring

Full harness work, connector repair, LED conversion, marker and clearance lights, and short diagnosis.

Coupling & Safety Gear

Kingpin and coupler service, safety chains, breakaway systems, mud flaps and rear impact guards.

One boundary, stated plainly: we service everything but the drivetrain. Engine internals, transmissions, clutches, driveshafts and differentials go to a drivetrain shop — everything else on the truck and trailer is ours.

Wiring & Lighting

Wired right, lit bright

Bad ground, dead circuit, or a full custom build — electrical is its own craft, and it's one of ours. Clean runs, sealed connections and lighting that passes inspection.

WIRING

Custom & General Wiring

We handle everything from a worn 7-way plug to a ground-up custom harness. Truck-side and trailer-side, looms protected and weather-sealed, so it stays connected through the seasons.

  • 4 / 5 / 6 / 7-WAY PLUGS
  • FULL REWIRES
  • CUSTOM HARNESSES
  • BRAKE CONTROLLER WIRING
  • BREAKAWAY + BATTERY
  • SHORT / GROUND DIAGNOSIS
  • WEATHERPROOF LOOMS
LIGHTS

Light Packages

Off-the-shelf upgrade or a fully custom load-out — we build lighting that's bright, durable and DOT-legal, then wire it to last.

  • LED CONVERSIONS
  • STOP / TURN / TAIL
  • CLEARANCE + ID BARS
  • REVERSE / BACKUP KITS
  • WORK + FLOOD LIGHTS
  • STROBE / WARNING BEACONS
  • INTERIOR CARGO LIGHTING
  • DOT CONSPICUITY TAPE
Why Southern Repair

Built for uptime

Every hour your rig sits is money parked. We work to get you inspected, repaired and back on the road — without cutting corners on safety.

DOT-Ready, Done Right

Inspections and repairs to federal spec, with the paperwork to back it up. Pass the first time.

Shop & Mobile Service

Bring it to the bay or we come to your yard. We keep you moving wherever the rig is sitting.

Honest Turnaround

Straight diagnosis, clear estimates and realistic timelines. No surprise add-ons on the invoice.

Techs Who Know Trucks

Heavy-duty is all we do. From air systems to harnesses, you're handing it to people who live this work.

Get a Quote

Tell us what it needs

Send the details on your truck or trailer and we'll get back fast with a straight estimate and the next open bay. Need it now? Call the shop.

Call the shop
Shop & service area
1865 Matthews Rd. Lillington, NC 27546
We typically reply within one business day.