Big Rig Alignment Company


Big Rig Alignment Company

Big Rig Alignment is a world leader in planning, design, installation, and training for the OEM heavy-duty wheel alignment industry.



We not only deal with the End-of-Line process, but we can work with you to make sure that the pre-alignment of spring hangers is correct. We can help axle manufacturers pre-set toe on steer axles with a high degree of accuracy and check drive axles for reasonable toe and camber values.



No matter the pre-existing condition of your alignment area, we will create a customized plan and system to fit your exact needs.



The civil work and equipment installation is scheduled to suit your specific operation and minimize production disruption.



Drastically increased accuracy and consistency mean confidence in your end of line alignment, meaning satisfied dealers and customers



Big Rig offers on-site alignment auditing services. We bring our precision equipment to your factory, distribution center, dealership, or R & D facility to give you precise, accurate data on the geometry of your product. 

We can audit up to fifty units per day and give you reality-based numbers that will assist you in refining your factory build processes and help you eliminate needless warranty claims. We certify the results and can supply statistical analysis if requested.

Here is a list of measurements we can provide along with the guaranteed accuracy:


Steer Axle:

  • Lateral Offset +/- 1mm
  • Camber (level floor) +/- 6’ (inclinometer compensated) +/- 3’
  • Caster +/- 6’
  • KPI +/- 10’
  • Toe +/- 0.2 mm/m
  • Maximum Turn +/- 30’
  • Toe-out on Turn (Data on accuracy not available)

Drive and Tag Axles:

  • Lateral Offset +/- 1mm
  • Out-of-Square/Thrust Angle (bi-sector of individual toe, frame referenced) +/- 0.2mm/m
  • Total toe +/- 0.2mm/m 
  • Wheel end Camber (level floor) +/- 6’
  • Tandem Axle Parallelism/Scrub Angle +/- 0.2mm/m

Additional measurements we can supply: 

  • Ride height
  • Frame angles
  • Frame straightness



We train not only operators, but maintenance, R&D, and supervisorial staff. All training on EOL equipment can be handled in house with a simple phone call or email. Tell us your training needs and schedule, we’ll handle the rest.

We also supply alignment theory classroom training for anyone at your plant that would benefit from a thorough understanding of commercial alignment theory and practice. Alignment for commercial vehicles is very different than alignment for cars and light trucks. Let the company that leads the way in OEM alignment training help you build better.


We offer training packages that include: alignment theory and operation, sales training, and promotional guides. The expanded package includes the Big Rig Alignment manual and POP material that identifies you as a Big Rig Certified Alignment Provider.


About US

Big Rig was established by President John Ashal in 2011 after over twenty years as a Mechanic for light and heavy duty trucks, including establishing several alignment programs.

We are based in San Diego, CA with team members located in Central Texas, Mexico, Arizona, and Sweden, giving our customers around-the-clock support for their operation.

Contact us anytime to discuss what we can do for your facility. We pride ourselves in complete customer satisfaction and look forward to hearing from you!


Contact Us

Contact us anytime to discuss what we can do for your facility. We pride ourselves in complete customer satisfaction and look forward to hearing from you!

Name *