TM 9-2520-246-34-1 b. Mainshaft Assembly. FRAME 1 1. 2. 3. 4. Measure Measure Measure Measure NOTE Readings must be within limits given readings are not within given limits, and get a new one. thickness of thrust washer (1). fifth gear bore (2). in table 2-5. If throw away part sleeve outside diameter (3) and inside diameter third gear bore (5). GO TO FRAME 2 (4). Table 2-5. Mainshaft Fifth and Third Gear Wear Limits Index Number 1 2 3 4 5 Item/Point of Measurement Thrust washer thickness Fifth gear bore Sleeve outside diameter Sleeve inside diameter Third gear bore Size and Fit of New Parts (inches) 0.150 to 0.152 2.1250 to 2.1255 2.1205 to 2.1210 1.7495 to 1.750 1.9680 to 1.9685 Wear Limit (inches) 0.010 0.001 0.001 None 0.004 2-51