[BoorishBears]

Like most major components in cars these days if it fails early, it's likely a common manufacturer defect.

Nissan CVTs for example, are known to die multiple times before 100k. Nissan even bumped up the warranty to avoid a proper recall.

People are offering rebuilt transmissions, but like you said the average individual is at most going to use their transmission as a core for a rebuilt one that very specific places make.

The dealer isn't going to point them to a transmission shop (or take their car to one)