Tier One Transmissions

10/21/2026

68RFE: Why we use a Dog Bone Sprag vs a Roller Sprag

10/21/2026

**MORE THAN TRANSMISSIONS.**

You probably know us for building transmissions, but did you know we also offer full-service truck repair and maintenance?

From routine maintenance and diagnostics to major mechanical repairs, our team is here to keep your truck on the road.

✔ Diesel & Gas Trucks
✔ General Repairs & Maintenance
✔ Engine & Drivability Diagnostics
✔ Brakes, Steering & Suspension
✔ Ford, Ram & GM Trucks

Same Tier 1 team. Same commitment to quality. More ways to keep your truck running.

📍 North Phoenix / Deer Valley

**Give us a call to schedule your next service.**
602-399-5484

10/19/2026

Bet you can't freeze the truck on time 👀

10/17/2026

🤦‍♂️ ✨

10/15/2026

Need your truck repaired or upgraded? Call today and get in/out super fast! 602-399-5484. Tier 1 is Arizona's #1 transmission builder, and your one stop shop for all thing trucks.

10/14/2026

RAGE BAIT WARNING
Brandons rant about current truck trends...

10/14/2026

6L80 & 6L90 the WORST 6-Speeds? | Common 6L80 & 6L90 Problems that lead to DESTRUCTION!

10/13/2026

Follow Cole as he puts together one of our built AS69RC transmissions! Tier One's Stage 1 AS69RC transmission is rated to 600 crankshaft horsepower, and is a great choice for mildly modified and tuned Ram 3500 6.7L Cummins trucks that are doing heavy towing or getting pushed hard off-road.

10/13/2026

We love seeing our customer trucks getting the attention they deserve.

Get your diesel fix with the October 2026 issue of Diesel World—packed with diesel power, badass builds, and the latest from the world of diesel trucks. Grab your single issue today!

https://engagedmedia.store/product/diesel-world-october-2026/?utm_source=social_mkt&utm_medium=facebook_mkt&utm_campaign=magazine_mkt

10/12/2026

Valley Truck Invasion was EPIC