The HHR Blog NASCAR · F1 · IndyCar
NASCAR

NASCAR Transaxle Explained: Why the Gearbox Moved to the Back

NASCAR's Next Gen transaxle explained in plain English: why the gearbox moved to the back, what the Xtrac five-speed does, and how sequential shifting works.

NASCAR Transaxle Explained: Why the Gearbox Moved to the Back
Jul 15, 2026 · 6 min read ·
Latest News
Why 0.4 MPH Can Cost You a Lap: How NASCAR Actually Catches Pit Road SpeedingJul 08 · Why "Saving Your Tires" Can Win You the Race: NASCAR Tire Fall-Off ExplainedJul 01 · Why a Hand Out the Window Can Get Your Qualifying Lap Thrown Out: NASCAR's Ai...Jun 24 · Those Flaps on the Roof Are Not Decoration: How NASCAR Keeps Cars from Going ...Jun 19 · Why Your Favorite Track Races Different in 2026: The 750-Horsepower Change, E...Jun 17 ·
NASCAR See all
Why 0.4 MPH Can Cost You a Lap: How NASCAR Actually Catches Pit Road Speeding

Why 0.4 MPH Can Cost You a Lap: How NASCAR Actually Catches Pit Roa...

Jul 08, 2026 · 6 min read ·
Why "Saving Your Tires" Can Win You the Race: NASCAR Tire Fall-Off Explained

Why "Saving Your Tires" Can Win You the Race: NASCAR Tire Fall-Off ...

Jul 01, 2026 · 5 min read ·
Why a Hand Out the Window Can Get Your Qualifying Lap Thrown Out: NASCAR's Airflow Rule, Explained

Why a Hand Out the Window Can Get Your Qualifying Lap Thrown Out: N...

Jun 24, 2026 · 6 min read ·