Billetworkz Automatic Shifter - "Chonk" - Fits Toyota GR Corolla / Corolla Hatch and Sedan (2019+)

Upgrade Your Shifting Experience with the Billetworkz Shift Knob and Lockout System, a direct replacement for your factory automatic shift knob. This setup not only enhances the look of your interior, it provides a crisp, mechanical engagement for a more performance-oriented feel. 

The Chonk is our biggest and heaviest shift knob yet, built with an oversized feel and serious weight to help deliver smoother, faster, and more confident shifts.

Designed for drivers who prefer a heavier-than-average knob, the Chonk fits naturally in your hand and helps create the buttery-smooth shifting feel enthusiasts love.

Engineered with an internal counterbore design, the Chonk is made to work with a wide range of reverse lockouts—including larger factory styles found on newer Ford Mustang, Ford Bronco, Chevrolet Cruze, Jeep Wrangler, Toyota GR Corolla, and Ford Focus ST/RS. 

Our exclusive shift knob and automatic adapter system replaces the factory shift knob button with a custom push-down lockout. Instead of pressing a button to change gears, you simply push down on the lockout collar to engage. The knob itself remains fixed in place for improved control, enhanced safety, and a refined, rattle-free feel. The precision-built mechanism resets instantly after each shift, ensuring a clean, solid connection for a confident, performance-inspired drive.

Both the lockout mechanism and the shift knob are CNC-machined from premium 6061 aluminum. The mechanism is available in multiple finishes (Black, Blue and Red). Each shift knob has a bold, colorful finish that stands out in any interior and ensure long‑term performance and style.

This system gives your interior a clean, performance-driven look with everyday usability.

Looking to add a shift pattern or logo? Order Here!