Which statement regarding the installation angles is correct according to Tech B?

The correct choice highlights that installation angles are generally not acceptable, which suggests that improper angles can lead to misalignment, increased wear on drivetrain components, and potential failure of the transmission system. It underscores the importance of ensuring that the angles fall within manufacturer specifications, as deviations can significantly impact vehicle performance and reliability.

The other options don't reflect the importance of proper installation angles. For instance, while some installation angles might be adjustable, it's not a universal truth, indicating that they may not always be adjustable based on the vehicle or transmission design. Furthermore, saying they need to be measured accurately before installation is crucial, but it does not address whether they are acceptable in the context outlined by Tech B. This is an important distinction because accurate measurements alone do not guarantee that installation angles will meet the required specifications or performance standards.