TM 10-3930-671-24 6.1. Electrical System Wiring Truck Wiring: GPX Model - TMD 27 (2.7L) Engine ........................ F-258 Electrical Assemblies Mounting - TMD 27 (2.7L) Engine............... F-259 For Reference Only NOTICE  -  This  section  presents  typical  wiring  arrangements  and  accessory  information  for  the truck  and  engine  for  reference  only.    Please  refer  to  wiring  diagrams  furnished  in  Appendix  D. Only the Parts Manual should be used for ordering parts. F-257