A common modification in high-performance rear-wheel-drive vehicles, this setup replaces the standard differential with a solid, one-piece unit and upgraded shafts. This configuration effectively locks both wheels together, ensuring equal power distribution regardless of traction. For example, in drag racing, this setup eliminates wheel spin on one side, maximizing acceleration.
This modification is significant because it provides maximum strength and eliminates differential action, resulting in consistent launches and improved straight-line performance. Historically, this type of setup has been favored in racing applications where traction and reliability are paramount, often sacrificing streetability for enhanced performance on the track.
