TM 9-2520-246-34 Figure 5-16. Repair and Replacement Standard Points of Measurement for Reverse Gear and Related Parts. Table 5-1. Repair and Replacement Standard Points of Measurement for Reverse Gear and Related Parts. Fig. Ref Point of Measurement Size and Fit Wear Limits No. Letter of New Parts 5-16 A Inside diameter of bearing 1.2510-1.2520 .001 5-16 B Outside diameter of shaft 1.2495-1.2505 .003 5-16 A-B Fit of bearing on shaft 0.0005L-0.0025L .004 5-16 C Reverse gear to input drive 5-17 G gear (backlash) .006L-.009L .016L 5-16 D Reverse gear to output sliding 5-18 L gear (backlash) .008L-.011L .018L 5-16 E Thickness of thrust washer (a) .061-.063 (*) 5-16 F Inside diameter of reverse gear 1.252-1.253 (*) 5-16 B-F Fit of gear on shaft .0015L-.0035L .0055L (a) Replace when bronze facing is partially or entirely worn off. 5-8