Aug 12, 2016 · TM 9-1768A Tractor Truck M20, Component Of 45-Ton Tank Transporter, Truck-Trailer M19, Engine, Clutch, Fuel System, And Cooling System, 1945-06-22 CONTENTS CHAPTER 1. INTRODUCTION 1-2 1-3 CHAPTER 2. DESCRIPTION 3-6 4-10 CHAPTER 3. TOOLS 7-9 11-19 Section I. Special tools 7-8 11-19 II. Improvised tools 9 19 CHAPTER 4.