2002 Wm C Ford depo excerpt of Bridgestone Firestone executive William Clay Ford Jr. in which he states that rollover injuries caused by tread separation were not the fault of the drivers.

A 2001 U.S. Department of Transportation engineering analysis of Firestone Wilderness AT tires. This comprehensive report details problems with Firestone tread defects and raises questions about whether these problems extend beyond recalled products. Contains numerous color illustrations and graphics.

This infographic details the complicated shared ownership interests between tire companies.

This image shows a 1973 Uniroyal patent office illustration of a steel belted tire with nylon safety belt.

Academic article on seat design and collision performance, including government regulations to improve safety.

2006 article in RubberNews.com describes the history of tire manufacturing, including the evolution of the design and use of cap plies.

This 2003 study by David Osborne provides an overview of tread separation issues with tires and recommends increased use of cap ply tires to make tires safer and more durable.

This diagram explains how to decipher the numbers and letters on the sidewalls of tires.

A broad overview of techniques and processes in making a tire.

A previously confidential analysis by a Firestone expert regarding tread separation problems with Firestone tires.