The trusted authority in transmission repair since 1954
Stay sharp. Stay certified.
From the Powertrain Expo to weekly online courses — keep your team at the leading edge.
Training & Events for Transmission Professionals
ATRA Powertrain Expo 2026
Three days of hands-on seminars, vendor showcases, and networking with the industry's top transmission professionals.
Live Training Seminars
Learn the latest tech solutions to current problems you are facing in your shop. Located throughout more than 30 locations annually.
Business Management Forum
Learn at your pace — business, health, personal including, finance, sales, leadership, successisms and more.
Certification
Industry-recognized credentials that prove your team's expertise.
Online Courses
Learn at your pace — diagnostics, electronics, and the latest gearbox tech.
Hands on Workshops
Hands-on sessions with master technicians, hosted at ATRA's Training and Research facility in San Antonio, Texas.
One association. Three doors. Pick yours.
Whether you drive, fix, or supply — ATRA is built to get you exactly where you need to go.