The trusted authority in transmission repair since 1954
Drive with confidence.
Repair with certainty.
ATRA connects vehicle owners with certified transmission specialists, and equips shops with the training, tools, and community that keep America moving.
Trusted by professionals. Supporting shops, technicians, and drivers worldwide for over seven decades.
GET STARTED
What brings you to ATRA today?
One click. The right path. Whether you're driving, fixing, learning, or leading the industry.
I Need My Car Fixed
Find a trusted, ATRA member shop in minutes.
I'm a shop owner
Tools, hotline & community to grow your business.
I want training
Live seminars, online courses & certification.
Industry insights
GEARS Magazine — Created by ATRA, the voice of the industry since 1992.
FOR DRIVERS
Find a transmission shop you can trust.
Every ATRA member shop signs our Code of Ethics and follows industry-leading repair standards. Your search starts with peace of mind.
MEMBERS
Built for shops that want to grow.
ATRA membership is the fastest path to better diagnostics, faster repairs, and stronger margins — backed by the largest community of transmission pros in the country.
Tech Hotline
Direct access to ATRA's expert technicians for diagnostic support whenever you need it.
Training Library
Industry-leading curricula keeping your team ahead of the latest transmission technology.
Technical Resources
Industry-leading curricula keeping your team ahead of the latest transmission technology.
Community Support
Connect with thousands of shop owners worldwide who share your standards and challenges.
TRAINING & EVENTS
Stay sharp. Get certified.
From the Powertrain Expo to weekly online courses — keep your team at the leading edge.
ATRA Powertrain Expo 2026
Three days of hands-on seminars, vendor showcases, and networking with the industry's top transmission professionals.
Live Training Seminars
GEARS Magazine — Created by ATRA, the voice of the industry since 1992.
Business Management Courses
Live seminars, online courses & certification.
Certification
Live seminars, online courses & certification.
Online Courses
Live seminars, online courses & certification.
Hands on Workshops
GEARS Magazine — Created by ATRA, the voice of the industry since 1992.
WHY ATRA
Seven decades of standards. One trusted name.
Since 1954, ATRA has been the benchmark for quality, ethics, and education in the transmission industry. When you see the ATRA seal, you know what it stands for.
Rigorous Certification
Members pass technical proficiency exams to earn the ATRA seal — your guarantee of skill.
Strict Code of Ethics
Every ATRA shop commits to honest diagnostics, fair pricing, and transparent repairs.
Nationwide Network
Over 1,800 member shops across North America — with 900 locations backed by the Golden Rule Warranty.
Continuous Education
Members stay current on every new platform, from CVTs to 10-speeds and EV transaxles.
One association. Three doors. Pick yours.
Whether you drive, fix, or supply — ATRA is built to get you exactly where you need to go.
CONSUMERS
Membership
Information
Benefits
Golden Rule Warranty
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INDUSTRY NEWS
TRAINING & EVENTS
ABOUT ATRA
Our Story
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