Pros
The benefits are great and job security is also fantastic! There is lots of room for movement within PACCAR as long as you have an undergraduate and/or graduate degree. The culture is also an 8am to 5pm culture which allows for a clear delineation between work and home life. Attention to detail is a major part of the culture which enables managers to be very knowledgeable of the business or team they may manage.
Cons
The culture is very business formal in dress so if a tie or business suit is not your thing then the PACCAR culture may not be right for you. If you are a male, you are expected to shave. Also, the company policy does not look favorably on working from home. Much of a manager's time is spent creating PowerPoint decks as opposed to managing their department.