LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> GMC >> 1974 >> Vanguard >> Labor Times >> Transmission >> Automatic Trans >> Transmission Assembly >> Removal & Installation
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Removal & Installation

TRANS ID - 400, 475, 3L80, 3L80HD

Applies ToNoteStandard HoursWarranty HoursSkill Level
4.43.3C
Additional Procedure: TRANSMISSION ASSEMBLY: Removal & Installation:
w/Catalytic Converter add0.40.4C
Combination Procedure: BAND: Remove & Replace:
Front0.7A
Rear or Both1.7A
Combination Procedure: CLUTCH PLATES: Remove & Replace:
Direct1.1A
Forward1.1A
Forward & Direct1.5A
Intermediate1.1A
Intermediate & Direct1.5A
Combination Procedure: CONVERTER: Drain & Test:
0.2C
Combination Procedure: FLYWHEEL: Remove & Replace:
0.3C
Combination Procedure: FRONT PUMP: Remove & Replace:
0.4B
Combination Procedure: INTERMEDIATE SPRAG: Overhaul:
1.5A
Combination Procedure: LOW SPRAG: Overhaul:
2.5A
Combination Procedure: OUTPUT SHAFT: Remove & Replace:
2.2B
Combination Procedure: TORQUE CONVERTER: Remove & Replace:
0.1C
Combination Procedure: TRANS OIL PUMP: Overhaul Removed:
0.5B
Combination Procedure: TRANS OIL PUMP BUSHINGS & SEAL: Remove & Replace:
0.3B
Combination Procedure: TRANS OIL PUMP SEAL: Remove & Replace:
Front0.2B
Combination Procedure: TRANSMISSION ASSEMBLY: Replace:
0.6C
Combination Procedure: TRANSMISSION CARRIER PINIONS: Remove & Replace:
Set,Both2.7B
Set,One2.1B
Combination Procedure: TRANSMISSION HOUSING: Remove & Replace:
2.5A