The gearbox shift range spans between which two numbers?

The gearbox shift range spans between which two numbers?

• A. 43 and 48
• B. 65 and 75
• C. 60 and 70
• D. 50 and 60

Answer: (B)

Shifts are designed to happen within a specific speed window where the engine torque and gearbox input are well matched for a smooth, efficient change. The range between 65 and 75 places the shift in the mid-to-upper end of the speed spectrum, which is typically where the engine still has ample power to handle the new gear without lugging, while avoiding overrevving or a harsh engagement. The other options would require shifting at too low a speed, risking lugging and sluggish response, or sit outside the intended spec for this gearbox. So, 65 to 75 best aligns with the designed operating band for shifting.

Shifts are designed to happen within a specific speed window where the engine torque and gearbox input are well matched for a smooth, efficient change. The range between 65 and 75 places the shift in the mid-to-upper end of the speed spectrum, which is typically where the engine still has ample power to handle the new gear without lugging, while avoiding overrevving or a harsh engagement. The other options would require shifting at too low a speed, risking lugging and sluggish response, or sit outside the intended spec for this gearbox. So, 65 to 75 best aligns with the designed operating band for shifting.