คำตอบที่ 1
ตามที่ฝรั่งเค้าว่าไว้ ถึงเรื่องประโยชน์ของมัน (มั้ง) ลองดู
The automatic behavior is that the center diff will be engaged (and ABS disengaged) when Low Range is engaged, but the center diff is unlocked in high range. With the center diff lock switch installed, you will be able to engage and disengage the center differential in high range. Now you may ask? Why do I need to do this?
Reasons are: Added traction in high range, limping home in hi-range if a drive shaft has been removed and more. In addition if the PIN 7 Mod is done, you will be able to use the switch to lock and unlock the center diff in low range.
