There are several methods you can use to change the route destination.
Reverse Shift Fork Clearance Inspection (M/T)
Measure the clearance between the reverse idler gear (A) and the reverse
shift fork (B) with a feeler gauge (C). If the clearance is more than the
service limit, go to step 2.
...
Fuel Pump/Fuel Gauge Sending Unit Replacement
Remove the fuel tank unit.
Remove the fuel level sensor (fuel sending unit) (A) from the fuel tank
unit (B).
Check these items before installing the fuel tank ...