Posted by: @terry-mccarthy

Please explain why Ford F 150 truck transmissions are defective causing shutters and rebuilds at approximately 100 k miles and why there are no recalls?  

They're defective because they're designed poorly. Forced recalls require that a defect be safety or emissions-related. Other than that it is up to the manufacturer's discretion.

Posted by: @terry-mccarthy

Is a class action lawsuit required to get a reliable vehicle?

Typically all those do is line the pockets of the lawyers with the members of the "class" receiving a pittance.

Posted by: @terry-mccarthy

Is GM any better?

No.

Posted by: @terry-mccarthy

Please explain why Ford F 150 truck transmissions are defective causing shutters and rebuilds at approximately 100 k miles and why there are no recalls

I'm assuming you mean more recent F-150s? Once a upon a time, they were once solid trucks that were notorious for rusting out. GM and Ford banded together to jointly develop a 10-speed automatic transmission that was so dysfunctional, GM and Ford will never work together again. Automatic transmissions up until 2014 were still decent. They were either transmissions made by ZF or just Ford. 

There haven't been recalls because no engineer can figure out what the problem is. If there are recalls, it's just enough to get to 60,000 miles or 5 years, then it's your problem. It's just a shoddy, overdesigned transmission that was brought to market too quickly in the name of making money, and before they got the kinks worked out. Typical for GM and Ford these days.

Posted by: @terry-mccarthy

Please explain why Ford F 150 truck transmissions are defective

Two words: Government. Regulation.

Before the government enacted unrealistic policies, their transmissions were fine.