Does anybody out there know the firing order for a 2001 Mitz. montero XLS?

I THINK THE MAUAL MENTION IT.

i HAVE THE QUESTION FOR YOU . WHEN YOU DRIVE A CAR APPROXIATE 35 TO 45 MILES/HOUR, RELEASE THE GAS PEDAL (TAKE YOUR FOOT OF THE GAS PEDAL) THEN STEP IT QUICK LIKE ACCELERATION, DID YOU HEAR THE NOISE "BUMB" ON THE REAR DIFFERENTIAL.

THANKS

anyone know what it is?

its in the manual......