Expert Transmission Rebuild & Repair Services in Phoenix
Built to Handle the Power. Proven in Phoenix.
At Tier One Transmissions, we engineer drivetrains to survive where others fail. While we are nationally known for our 68RFE program, our Phoenix facility is a full-service performance transmission shop equipped to handle the latest 10-speed technology and legendary heavy-duty platforms.
Our Build Specialties
- Ram / Cummins: The industry standard for 68RFE performance (Stage 1-3), plus heavy-duty AS69RC and legendary 48RE builds.
- Ford / Powerstroke & Coyote: Experts in the new 10R140 (Super Duty) and 10R80 (F-150/Mustang), alongside the workhorse 6R140 and 6R80 platforms.
- GM / Duramax: Precision rebuilds for the Allison 1000 (5 & 6 Speed), the new 10L1000, and high-performance 6L80/6L90 upgrades.
Every Tier One build is assembled in-house and dyno-tested to ensure it’s ready for the Arizona heat. Choose your platform below to get started.
