Which component is not part of a splitter shift system in a truck?

• A. Cross-shift valve
• B. Splitter cylinder
• C. Insert valve
• D. Regulator assembly

Answer: (A)

Splitter shift relies on a compact hydraulic control loop to move the splitter gear sleeve, with three main parts doing the essential work: the splitter cylinder provides the actual actuation to shift the splitter into high or low positions, the insert valve directs hydraulic fluid to the splitter cylinder to select the desired engagement, and the regulator assembly maintains stable pressure so shifts happen smoothly under load. A cross-shift valve, by contrast, is part of a separate hydraulic pathway used to coordinate shifts across different gear sets or ranges, not to actuate the splitter itself. So it isn’t part of the splitter shift system.