Final answer:
When using the TMC method of adjusting wheel bearings, the endplay must be within the range of 0.005-0.050 inch (option a).
Step-by-step explanation:
When using the TMC method of adjusting wheel bearings, the endplay must be within the range of 0.005-0.050 inch (option a).
TMC stands for Technology & Maintenance Council, which is an organization that develops standards and best practices in the trucking industry.
Adjusting the wheel bearings within this specified range ensures proper functioning and prevents excessive wear or damage to the bearings.