708-500-5281 
Your 5th wheel is what keeps the trailer connection locked, stable, and road-ready under load. When it starts wearing out, you risk poor coupling, excess movement, added wear, and serious safety issues. West 66 provides 5th wheel inspection, repair, adjustment, lubrication, and replacement for heavy-duty trucks and fleets.
5th Wheel Service
We provide complete 5th wheel service and maintenance for working trucks, including:
- Lock jaw replacement
- Release handle repair
- Sliding and non-sliding 5th wheel adjustment
- Mounting bracket installation
- Greasing of locking jaws and top plate
- Complete 5th wheel replacement
Keep Your Truck Coupling Safe and Repliable
Whether your truck needs a quick adjustment, worn components replaced, or a full 5th wheel changeout, our team makes sure the coupling system is secure, working properly, and ready for the miles ahead. Call today to schedule 5th wheel service.
Common Signs Your 5th Wheel Needs Service
- Difficulty coupling or uncoupling
- Lock jaw not closing completely
- Grinding or clunking during movement
- Too much play while driving
- Grease contamination or a dry plate
- Release handle sticking or binding
- Vibration during acceleration
These symptoms can lead to unsafe towing–and even trailer disconnection.
How the Process Works
From the initial inspection through the final review, we follow a clear process designed to keep downtime low and get your truck or trailer back in service quickly.
Process steps
- Initial inspection and compliance assessment
- Clear explanation of findings and next steps
- Needed repairs or corrections, if required
- Final review and safety check
- Ready for pickup and back on the road
Why choose West 66
Certified heavy-duty diesel technicians
Complete 5th wheel inspection—not just a grease job
Locking jaws and coupling components fully checked
In-house repairs if issues are found
Frequently asked questions
5th wheel service can include inspection, adjustment, lubrication, repair, and replacement of worn or damaged parts. That may involve lock jaws, release handles, mounting brackets, sliding components, and greasing the plate and locking area to keep the coupling system working properly.
Warning signs include trouble coupling, excessive movement, lock jaws not closing fully, sticking handles, grinding noises, vibration, or visible wear on the plate. If the connection feels loose or inconsistent, the 5th wheel should be inspected before it creates a larger safety issue.
Proper lubrication helps reduce friction, minimize wear, improve coupling performance, and protect the plate and kingpin connection. When the 5th wheel runs dry or becomes contaminated, components can wear faster, operate poorly, and increase the risk of damage or unsafe trailer movement.
Yes. A worn 5th wheel can cause excess play, unstable towing, improper locking, and uneven wear at the coupling point. In more serious situations, it can increase the risk of trailer separation, making regular inspection and service important for safe operation.
Inspection frequency depends on mileage, usage, load demands, and operating conditions, but regular checks are important for any working truck. Frequent inspection helps catch wear before it becomes dangerous, supports safer coupling, and reduces the chance of unexpected downtime or more expensive repairs.
Testimonials What Our Customers Say
Contact Us
Have a question or need a quick quote? Send your truck or trailer make, model, year, and a description of the issue, and we’ll get back to you as soon as possible.
Contact Information:
Phone:
708-500-5281
Email:
[email protected]
Location:
Address
198 W Laraway Rd, Joliet, IL 60436, United States
Opening Hours:
Mon – Fri:
7:00 AM – 5:00 PM
Saturday:
7:00 AM – 12:00 PM
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