US Army, Technical Manual, TM 5-2410-237-23, TRACTOR, FULL TRACKED, LOW SPEED: DIESEL ENGINE DRIVEN, MEDIUM DRAWBAR PULL TRACTOR WITH RIPPER (NSN 2410-01-223-0350) ... (EIC: EBV) CATERPILLAR MODEL D7G

US Army, Technical Manual, TM 5-2410-237-23, TRACTOR, FULL TRACKED, LOW SPEED: DIESEL ENGINE DRIVEN, MEDIUM DRAWBAR PULL TRACTOR WITH RIPPER (NSN 2410-01-223-0350) (EIC: EAZ) TRACTOR WITH WINCH (NSN 2410-01-223-7261 (EIC: EBM) TRACTOR WITH RIPPER AND WINTERIZED CAB (NSN 2410-01-253-2118) TRACTOR WITH WINCH AND WINTERIZED CAB (NSN 2410-01-253-2117) (EIC: EBV) CATERPILLAR MODEL D7G