.WARNING. Left front underbody armor is extremely heavy and must be supported during removal and installation. Failure to do so may result in injury to personnel or damage to equipment. NOTE Installing a new left front underbody armor requires match drilling of the underbody to the vehicle. In addition, the driver’s side footwell left inner and outer liners will have to be replaced. 1. Install driver’s side footwell outer armor (5) and spacer (6) on left A-beam armor (4) with six capscrews (7). Tighten capscrews (7) to 35 lb-ft (47 N•m). 2. Using A-pillar armor (1) as a template, drill one 13/32-in. (10.3 mm) diameter hole from A-pillar armor (1) through driver’s side footwell outer armor (5). NOTE Capscrews in steps 3 and 5 are installed in darkened hole locations in A-pillar armor. 3. Install one capscrew (2) and locknut (3) through A-pillar armor (1) and driver’s side footwell outer armor (5). Tighten locknut (3) to 35 lb-ft (47 N•m). 4. Using A-pillar armor (1) as a template, match-drill twenty-five 13/32 in. (10.3 mm) diameter holes from A-pillar armor (1) through driver’s side footwell outer armor (5). 5. Install eleven capscrews (2) and locknuts (3) through A-pillar armor (1) and driver’s side footwell outer armor (5). Tighten locknuts (3) to 35 lb-ft (47 N•m). a.  New Driver’s Side Footwell Outer Armor Installation 11-36.1.   LEFT FRONT UNDERBODY ARMOR INSTALLATION INITIAL SETUP: Applicable Models M1114 Tools General mechanic’s tool kit: automotive (Appendix B, Item 1) Maintenance and repair shop equipment: automotive (Appendix B, Item 2) Materials/Parts Fifteen AVK fasteners (Appendix G, Item 3.1) Forty-two locknuts (Appendix G, Item 169) Sealing compound (Appendix C, Item 72.1) Personnel Required One mechanic One assistant Materials/Parts TM 9-2320-387-10 TM 9-2320-387-24P Equipment Condition •  Raise and secure hood (TM 9-2320-387-10). •  Remove accelerator linkage (para. 3-43). •  Remove steering wheel lock (para. 10-48). •  Remove engine access cover (para. 10-22). •  Remove tunnel insulation (para. 10-33). •  Remove left front cowl insulation (para. 10-31). •  Remove left front underbody armor (para. 11-36). •  Remove driver’s side footwell outer armor (para. 11-40). •  Remove driver’s side footwell inner armor (para. 11-41). General Safety Instructions Left front underbody armor is extremely heavy and must be supported during removal and installation. Maintenance Level Unit TM 9-2320-387-24-2 This task covers: a.   New Driver’s Side Footwell Outer c.   New Front Underbody Armor Installation Armor Installation b.   New Driver’s Side Footwell Inner Armor Installation 11-68.2 Change 1