Birdcages & Components
Our birdcages and related components are built to keep rear axle movement smooth, controlled, and consistent every racing day. Each unit, from birdcage plates to bearing carriers, is machined for precise alignment, low drag, and reliable axle indexing through corner entry and exit. We use proven materials and tight machining control to reduce flex, prevent binding, and ensure dependable performance lap after lap.
FAQs
How do I choose the right birdcage setup for my rear suspension?
First, take a look at your chassis type and the amount of rear steer or indexing your setup requires. The right birdcage should match your axle diameter, bearing style, and the arm locations you need for your preferred handling balance.
Do birdcage plates affect rear steer or traction?
Yes. The birdcage plates determine arm placement and indexing range, which directly influences rear steer characteristics and traction off the corner.
What does a birdcage actually do on a race car?
It allows the rear axle to rotate freely inside the housing while keeping the suspension arms anchored. This separation of axle rotation and suspension movement improves consistency through bumps, corner transitions, and load changes.
How do birdcages impact forward drive and corner entry?
Smooth bearings and rigid cages help the axle rotate without binding. This reduces chassis upset on entry and improves rear stability and drive on exit.
How do you ensure smooth axle rotation and accurate indexing in birdcages?
Birdcages and plates are machined from high-strength alloys with exact arm-mount locations and precision-finished bearing bores. This keeps the rotation smooth, prevents binding, and maintains consistent indexing under high torque.
If I am unsure, can ETG help me match birdcages with my existing suspension arms?
Absolutely. Our team will guide you through fitment, arm placement, bearing compatibility, and indexing requirements to ensure your chassis setup is race-ready.
Reviews
Contact us
At Earnhardt Technologies Group, racing is in our DNA. Every component is precision-machined in Mooresville, NC, built to endure the toughest conditions on the track.