And just so everyone knows, the problem with the Firestone tires in 1978 was a chemical they (and everyone else) used to promote adhesion of rubber to steel - HMT (hexamethylenetetramine). In the presence of water, it turns into an acid - and it turns out that water vapor can diffuse through rubber. Firestone was the last to discover the problem and replace that chemical - and that’s why the successor to the Firestone 500, (the Firestone 721) also had the problem.
The way the company handled this became a textbook example of what not to do!