Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
1976 Buick RivieraFACTORY OEM SERVICE PROCEDURE
Removal & Installation
TRANS ID - 375, 400
| Applies To | Note | Standard Hours | Warranty Hours | Skill Level |
|---|---|---|---|---|
| 2.8 | 2.1 | C | ||
| Combination Procedure: BAND: Remove & Replace: | ||||
| Front & Rear,Front | 1.0 | A | ||
| Front & Rear,Rear or Both | 1.7 | A | ||
| Combination Procedure: CARRIER PINIONS: Removal & Installation: | ||||
| Both | 2.9 | B | ||
| Output Carrier Pinions | 2.4 | B | ||
| Reaction Carrier Pinions | 2.2 | B | ||
| Combination Procedure: CLUTCH PLATES: Remove & Replace: | ||||
| Direct Clutch | 1.1 | A | ||
| Forward & Direct Clutch | 1.5 | A | ||
| Forward Clutch | 1.1 | A | ||
| Intermediate & Direct Clutch | 1.5 | A | ||
| Intermediate Clutch | 1.1 | A | ||
| Combination Procedure: CONVERTER: Drain & Test: | ||||
| 0.2 | 0.2 | C | ||
| Combination Procedure: FLYWHEEL: Remove & Replace: | ||||
| 0.3 | 0.2 | C | ||
| Combination Procedure: FRONT PUMP (REMOVED): Overhaul: | ||||
| 0.5 | B | |||
| Combination Procedure: FRONT PUMP BUSHING & SEAL: Remove & Replace: | ||||
| 0.2 | 0.2 | B | ||
| Combination Procedure: INTERMEDIATE SPRAG: Overhaul: | ||||
| 1.6 | A | |||
| Combination Procedure: LOW SPRAG: Remove & Replace: | ||||
| 2.5 | A | |||
| Combination Procedure: OIL PUMP: Remove & Replace: | ||||
| Front | 0.4 | B | ||
| Combination Procedure: OIL PUMP SEAL: Remove & Replace: | ||||
| Front | 0.1 | 0.1 | B | |
| Combination Procedure: OUTPUT SHAFT: Remove & Replace: | ||||
| 2.2 | B | |||
| Combination Procedure: TORQUE CONVERTER: Remove & Replace: | ||||
| 0.2 | C | |||
| Combination Procedure: TRANSMISSION ASSEMBLY: Replace: | ||||
| 0.6 | C | |||
| Combination Procedure: TRANSMISSION CASE: Remove & Replace: | ||||
| 2.5 | A | |||
Factory Service Tools
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.