Transmission and Drivetrain: Technical Service Bulletins

• By Symptom
  • Abnormal wear/deterioration
    • A/T - Front Bushing Wear
    • M/T - Roller Bearing & Main Shaft Modified
  • Loose
    • Counter Shaft Gear - Snap Ring Replaced by a Lock Nut
  • No shift/Incorrect gear engagement
    • A/T - E4N71B, L4N71B, 4N71B No 4th Gear
    • A/T - Slipping or No-Shift/Metal Sealing Rings
• All Technical Service Bulletins
  • Tools, Special - Modification
  • Transmission Front Bearing - Modification
  • A/T - Diagnostic Procedures
  • A/T - Engine Vacuum Testing
  • A/T - How To Use A Pressure Gauge
  • A/T - E4N71B, L4N71B, 4N71B No 4th Gear
  • A/T - Slipping or No-Shift/Metal Sealing Rings
  • A/T - Front Bushing Wear
  • A/T - Math Formulas Part I
    • Overview
    • Shift Speed and Pressure
    • Speedometer Ratios
  • A/T - Twenty Steps To Successful Repairs
  • A/T - Math Part II
  • A/T - Choosing the Right ATF
  • Transmission Bearing - Modification
  • Counter Shaft Gear - Snap Ring Replaced by a Lock Nut
  • M/T - Roller Bearing & Main Shaft Modified
  • M/T - Shim Adjustment Procedure
  • Transmission - Revised Bearing Cover Bolt Torque