Gear train end play can be adjusted by?

Adjusting gear train end play often involves ensuring that the gears have the proper spacing to function efficiently without excessive movement that could lead to wear or failure. Selecting the correct thickness shims is key to achieving the desired end play. Shims are thin pieces of material used to fill small gaps or spaces between components, and by choosing the appropriate thickness, a mechanic can either increase or decrease the end play as needed.

This process is crucial because too much end play can lead to operational issues such as noise, vibration, and premature wear, while too little can result in binding and increased friction. Each automatic transmission can have specifications indicating the required end play, and by using shims of different thicknesses, the mechanic ensures the gears are positioned correctly according to these specifications.

Other options, while related to transmission function, do not directly address the adjustment of gear train end play. Adjusting the length of the servo stem affects the application of clutches and the overall operation of the transmission but does not control end play. Adding or removing clutch plates changes the friction surface area but does not affect the spacing of the gear train. Adjusting the pump position can influence fluid pressure and flow, but it also does not directly relate to end play adjustments. Thus, selecting the