Acknowledgments Foreword by David Kee Preface Chapter 1: History and Evolution The Early Days The 1960s Ford, General Motors, and Chrysler Create 4-Speed Transmissions The Ford Design 4-Speed Transmission Chapter 2: Identification Understanding a Toploader''s History Tag Codes Case Codes Tailhousing Codes Bellhousing Codes Casting Date Codes Shift-Rail Identification Gear Ratios No Serial Numbers No Codes on Input Shafts Chapter 3: How Toploaders Work Shifting Gears Chapter 4: Disassembly Lubricant Cover, Pre-Cleaning, and Testing Detent Springs Tailhousing and Snap Ring Speedometer Gear and Ball Front Bearing Retainer Cluster-Gear Shaft and Input Shaft Inside of the Case Output-Shaft Gear Disassembly Synchronizer Disassembly Chapter 5: Inspection Bearing Retainer Diameter in the Bellhousing Cracks Around the Bearing Retainer Bolt Holes Bearing Retainer Length on 13/8-Inch Input Shaft Input Pilot Bushing Surface Length Twist in the Input-Shaft Splines Twist in the Output-Shaft Splines Tailhousing Shifter Location Wear in the Key Slots on the Inner Hubs of Synchronizer Assemblies Loose Pins in the Cam and the Shafts Excessive Wear on the Coast Side of the Engagement Teeth Bellhousing Alignment Shift Fork Wear in the Cam Slots Shift Fork Thickness Front Bearing Bore Alignment Parts Inspection Chapter 6: Assembly Predetermined Sequences Assembly The Building Sequence Sequence 1 Synchronizer Assemblies Output-Shaft Assemblies Output-Shaft Installation Sequence 2 Sequence 3 Sequence 4 Sequence 5 Building Options Chapter 7: Ford High-Performance Toploaders White Stripe Toploaders Factory Aluminum Cases Transitional High-Performance Toploaders Chapter 8: Aftermarket High-Performance Toploaders Gear Cutting Evolved Toploaders Chapter 9: The Progression from Toploaders to Jericos Production Methodology Weight Standard Features Gear Selection