If a detent spring is broken, what occurs when shifting into top gear?

If a detent spring is broken, what occurs when shifting into top gear?

• A. Gear lever to stay locked
• B. Direct drive shift collar to slide and disengage
• C. Increased gear noise
• D. Input shaft wear

Answer: (B)

Detents provide the bias that holds a shift sleeve in the selected gear position. When that detent spring is broken, the shift collar loses its snap-hold and can move under load. So, as you shift into top gear, the direct-drive shift collar can slide and disengage, meaning top gear won’t stay engaged. The other outcomes don’t stem directly from a missing detent bias: a locked gear lever would imply the lever is held in place instead of free to move, and increased gear noise or input shaft wear come from different faults rather than the absence of detent bias.

Detents provide the bias that holds a shift sleeve in the selected gear position. When that detent spring is broken, the shift collar loses its snap-hold and can move under load. So, as you shift into top gear, the direct-drive shift collar can slide and disengage, meaning top gear won’t stay engaged. The other outcomes don’t stem directly from a missing detent bias: a locked gear lever would imply the lever is held in place instead of free to move, and increased gear noise or input shaft wear come from different faults rather than the absence of detent bias.