ASE Automatic Transmission and Transaxle (A2) Practice Test 2025 - Free ASE A2 Practice Questions and Study Guide

Marking the drive axles before disconnecting the driveshaft is crucial for several reasons. When you are removing a transaxle, it is essential to maintain the alignment and orientation of the components to ensure proper reinstallation. The drive axles must be marked before they are disconnected because their original position affects the balance and alignment of the suspension and drivetrain.

This precaution helps to prevent issues such as vibrations, misalignment of the wheels, and uneven tire wear after reassembly. Additionally, marking the axles in their original position assists in the installation of any bearings or seals that may be affected by their orientation.

Completing this marking step prior to disconnection ensures that all components can be accurately and easily reassembled in the same manner they were removed, reducing the potential for errors during the reinstallation process. This practice is part of a meticulous approach to maintain the integrity of the vehicle’s drivetrain system.