Is a 90 day or 3,000 mile warranty (whichever comes latest) sufficient time for any problem with the transmission to show up? Based on earlier comments from this list, I am going to have a mechanic put a used transmission in my car. My current transmission has rust inside.

The Volvo mechanic who has the transmission bought it as part of an engine - transmission package and says he doesn’t remember the miles on it. My current car drove beautifully after a transmission flush in January until May, which was about 1000 miles only, when it had symptoms again. I had it flushed this week and the transmission folks said more clutch material is flaking off. My car is working, but there’s hesitation in shifting. So my concern is that even though my car worked great this winter, it still had serious problems that took awhile to show up in symptoms. How will I know the “new” transmission is doing ok before the warranty expires?

Thank you much for your information.