Transmission Repair & Service

We're the experts in heavy duty transmission. We have the products and service capabilities to help you extend the life of your transmission, maximize uptime, and experience optimal performance—all to help you deliver on-time, on-budget, and on-expectations.


  • Diagnostics.

    Problems with late-shifting gears or slipping transmission? We perform electronic diagnostics and tests to pinpoint the issue.

  • Repair.

    From clutch plates to flywheels, we're able to quickly repair the parts and resolve the issues that are keeping your truck down.

  • Rebuild.

    We can break down, clean, service, repair, and re-assemble your transmission to get you back on the road.

  • Replacement.

    Want to install a new transmission instead of buying a new truck? We're an authorized distributor for warranty-backed Allison Transmission.

  • Remanufactured.

    Prefer an alternative to buying a brand new transmission? We're an authorized dealer for warranty-backed Allison Transmission factory ReTran® remanufactured transmissions and Weller remanufactured transmissions.

  • For all heavy duty transmissions.

    We service and repair all medium and heavy duty vehicle transmissions, including: diesel truck transmissions, 18-wheeler semi-truck transmissions, bus transmissions, fire truck and emergency vehicle transmissions, construction vehicle transmissions, and more.

Consider it done.

We help drivers and fleets minimize downtime, control costs and get back on the road safely.


Since 1980, W.W. Williams has been recognized as the leading semi-truck transmission specialists. While we built our reputation on our work with Allison Transmission, our service centers are able to repair, rebuild or replace any make and model truck transmission or heavy duty transmission. Including yours. Here's how:

  • SPEC Tool© Investment Analysis
  • Driveline Spec'ing with iSCAAN
  • Allison DOC™ Software
  • Allison TransHealth™
  • Experienced factory-trained technicians
  • Fully equipped service trucks to reduce downtime

All Makes. All Models.

In addition to Allison Transmission and Weller Transmission, we represent some of the top brands in the industry. Here's a small sample.

WheelTime Promise

Get It Done Right, The First Time.

W.W. Williams is a member of the WheelTime Service Network, a network of service locations across the US and Canada dedicated to getting you back on the road in the shortest possible time.

The Wheeltime Promise
  • Initial assessment within two hours of arrival
  • Completed repairs in the fastest time possible
  • We will meet the cost estimate given
  • We will meet the time estimate given
  • We will notify you within 30 minutes after last labor
  • We will do it right, the first time