Pros
An Engineer can make some big technical and project accomplishments- but will receive very little reward for the efforts.
Cons
You can make huge accomplishments at PACCAR, be well known throughout the organization and industry, have a great reputation, and then never get promoted. There is no doubt a glass ceiling at the organization. Additionally, the chairman's behavior does encourage bullying behavior to trickle down through the lower ranks. Typically when a mid level manager is brought into the divisions from a corporate role, childish bullying tactics prevail. If you are good at what you do, you will have no opportunity for advancement- it will be a career dead end. If you do leave PACCAR as an employee, be prepared for feeble attempts at smearing of your name. People are so childish at the company that after a respected employee who has proven accomplishments leaves, the lower level corporate minions stab them in the back.