Toyota Highlander Service Manual: Differential system (4WD)

Differential

...

Precaution

 Before disassembly, clean the outside of the rear differential assy and remove any sand or mud to prevent it from entering the inside of the assembly during disassembly and installati ...

More about Toyota Highlander:

Towing related terms
Gcwr (gross combination weight rating) The maximum allowable gross combination weight. The gross combination weight is the sum of the total vehicle weight (including the occupants, cargo and any optional equipment installed on the vehicle) and the weight of the trailer being towed (includin ...