Toyota Tundra 2005 Service - Repair - Maintenance page 2298

MANUAL TRANSMISSION (RA60)
7.
Using a cylinder gauge, measure the inside diameter of the
gear.
If the inside diameter exceeds the maximum, replace the 2nd
gear.
D14060
8.
Using a cylinder gauge, measure the inside diameter of the
gear.
If the inside diameter exceeds the maximum, replace the re-
verse gear.
D14061
− COUNTER GEAR
INSPECT 2ND GEAR
Standard inside diameter:
60.015 to 60.040 mm (2.3628 to 2.3638 in.)
Maximum inside diameter:
60.040 mm (2.3638 in.)
INSPECT REVERSE GEAR
Standard inside diameter:
51.015 to 51.040 mm (2.0085 to 2.0094 in.)
Maximum inside diameter:
51.040 mm (2.0094 in.)
MT−55