Pontiac Pontiac Firebird 1982-1992 M30 Transmission Transmission Specifications
Pontiac Pontiac Firebird 1982-1992

Pontiac Pontiac Firebird 1982-1992 M30 Transmission Specifications

This document provides detailed technical specifications for the M30 transmission used in the 1982-1992 Pontiac Firebird. It includes gear ratios, torque capacity, fluid requirements, and maintenance intervals. These specifications are essential for mechanics, enthusiasts, and restorers to ensure proper performance, compatibility, and longevity of the transmission. Whether you're performing routine maintenance, diagnosing issues, or upgrading your Firebird, this guide offers valuable insights into the M30 transmission's design and operational parameters. It serves as a reliable reference for sourcing parts, understanding compatibility, and optimizing performance.

Updated

Overview Specifications

This document provides detailed specifications and technical information about the M30 transmission used in the 1982-1992 Pontiac Firebird. It is designed to assist enthusiasts, mechanics, and restorers in understanding the transmission's features, maintenance requirements, and performance characteristics. Use this guide to locate specific details, compare specifications, and ensure proper care for the M30 transmission.

How to Use

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Key Specifications

Transmission Type

3-speed automatic

Gear Ratios

2.74:1, 1.57:1, 1.00:1

Torque Capacity

300 lb-ft

Fluid Capacity

10 quarts

Weight

150 lbs

Available Specifications

Transmission Design

This section covers the design and construction of the M30 transmission, including its components, materials, and engineering features. Learn about the transmission's layout, durability, and how it integrates with the Pontiac Firebird's powertrain.

Transmission Layout
  • Three-speed automatic transmission
  • Rear-wheel drive configuration
  • Cast aluminum housing for reduced weight
  • Hydraulic torque converter design
  • Integrated cooling system for heat management
  • Compact design for engine compatibility
Materials and Build
  • High-strength steel gears
  • Durable clutch plates for enhanced longevity
  • Sealed bearings for reduced maintenance
  • Corrosion-resistant coatings on internal components
  • Precision-machined parts for smooth operation

Performance Specifications

Explore the performance characteristics of the M30 transmission, including gear ratios, torque handling, and shift patterns. This section provides insights into how the transmission enhances the driving experience of the Pontiac Firebird.

Gear Ratios
  • First gear: 2.74:1 ratio
  • Second gear: 1.57:1 ratio
  • Third gear: 1.00:1 ratio
  • Reverse gear: 2.07:1 ratio
  • Wide gear spread for versatile performance
Torque and Power Handling
  • Maximum torque capacity: 300 lb-ft
  • Optimized for V8 engine configurations
  • Smooth power delivery for acceleration
  • Designed for high-performance driving
  • Efficient power transfer to the rear wheels

Maintenance and Care

This section provides guidelines for maintaining the M30 transmission, including fluid requirements, inspection intervals, and troubleshooting tips. Proper care ensures optimal performance and extends the transmission's lifespan.

Fluid Requirements
  • Recommended fluid: Dexron III automatic transmission fluid
  • Fluid capacity: 10 quarts (including torque converter)
  • Regular fluid changes every 30,000 miles
  • Use of a quality filter for fluid cleanliness
  • Check fluid level monthly for optimal performance
Inspection and Troubleshooting
  • Inspect for leaks around seals and gaskets
  • Monitor for unusual noises during operation
  • Check shift linkage for smooth engagement
  • Address delayed or harsh shifting promptly
  • Consult a professional for complex issues

Transmission Specifications

Overview

Type
Automatic
Configuration
3-speed
Platform
GM RWD
Material
Cast iron casing
Location
Longitudinal, rear-wheel drive

Dimensions

Length
28.5 inches (724 mm)
Width
22.8 inches (579 mm)
Height
14.2 inches (361 mm)
Weight
135 lbs (61.2 kg)
input Shaft Length
7.5 inches (190.5 mm)
Output Shaft Length
12.3 inches (312 mm)
Bellhousing Diameter
12.75 inches (324 mm)

Materials

Casing
Cast iron
Gears
Hardened steel
Clutch Plates
Composite friction material
Seals
Nitrile rubber

Features

Shifting
  • Hydraulic shift control
  • Manual valve body option
  • Smooth gear transitions
Cooling
  • Integrated transmission cooler
  • Fluid circulation system
  • Thermal protection
Durability
  • Reinforced gear sets
  • High-capacity torque converter
  • Robust clutch packs
Compatibility
  • GM V6 and V8 engines
  • Standard GM bolt pattern
  • Universal crossmember mounting

Safety Features

Overload Protection
  • Torque converter lockup
  • Overheat warning system
Fail Safe
  • Neutral safety switch
  • Park lock mechanism

Comfort Features

Noise Reduction
  • Dampened gear meshing
  • Isolated mounting points
Smoothness
  • Balanced rotating assembly
  • Precision-engineered components

Accessories

installation
  • Transmission mount kit
  • Crossmember adapter
  • Shift linkage
Performance
  • Shift improvement kit
  • High-stall torque converter
  • Transmission cooler
Maintenance
  • Fluid filter kit
  • Gasket set
  • Seal kit

Maintenance

Service interval
Every 30,000 miles or 24 months
Service Items
  • Fluid and filter replacement
  • Seal inspection
  • Shift linkage adjustment
  • Torque converter check
  • Mount inspection
Maintenance Notes
Use Dexron III transmission fluid for optimal performance.

Warranty

Basic
Miles: 12,000
Years: 1
Coverage: Parts and labor
Powertrain
Miles: 50,000
Years: 3
Coverage: Transmission components
Corrosion
Miles: Unlimited
Years: 5
Coverage: Casing and external parts
Extended
Miles: 100,000
Years: 5
Coverage: Optional extended coverage

Production Details

Manufacturer
General Motors
Manufacturing Process
  • Casting for casing
  • CNC machining for gears
  • Heat treatment for durability
Quality Control
inspection: 100% component testing
Testing: Dyno and road simulation
Sustainability
  • Recycled materials in casing
  • Eco-friendly fluid options
Production Metrics
Units Per Year: Approx. 50,000
Defect Rate: Less than 0.5%

Service Information for m30 transmission Service

Maintenance and service requirements specific to this component

30,000
24
  • Fluid and filter replacement
  • Seal inspection
  • Shift linkage adjustment
  • Torque converter check
  • Mount inspection

Use Dexron III transmission fluid for optimal performance.

60,000
48
  • Transmission fluid flush
  • Clutch pack inspection
  • Valve body cleaning
  • Cooler line inspection

Special tools required for valve body disassembly.

100,000
84
  • Complete transmission overhaul
  • Torque converter replacement
  • Seal and gasket replacement
  • Performance testing

Critical to replace all wear components during major service.

Common Questions

Find answers to common questions about torque specifications

Q1

Is the M30 transmission compatible with all 1982-1992 Pontiac Firebird models?

The M30 transmission is compatible with most 1982-1992 Pontiac Firebird models, particularly those equipped with the 2.8L V6 engine. However, it may not be suitable for models with larger engines like the 5.0L or 5.7L V8s. Always verify the specific engine and transmission pairing using the vehicle’s VIN or a compatibility guide to ensure proper fitment and performance.

Q2

What are the maintenance requirements for the M30 transmission?

The M30 transmission requires regular maintenance to ensure optimal performance. This includes checking and replacing the transmission fluid every 30,000 miles, inspecting the filter for debris, and monitoring for leaks or unusual noises. Additionally, the clutch and pressure plate should be inspected every 50,000 miles. Proper lubrication and timely replacement of worn components are essential for longevity.

Q3

How do I install or replace the M30 transmission in a Pontiac Firebird?

To install or replace the M30 transmission, first, disconnect the battery and remove the driveshaft. Support the transmission with a jack and detach it from the engine by removing the bellhousing bolts. Carefully lower the transmission and reverse the steps for installation. Ensure proper alignment of the clutch and torque all bolts to the manufacturer’s specifications. Refill with the recommended transmission fluid before testing.

Q4

What are common troubleshooting steps for the M30 transmission?

Common issues with the M30 transmission include difficulty shifting, grinding noises, and fluid leaks. Start by checking the transmission fluid level and condition. Inspect the clutch linkage and adjust if necessary. If problems persist, examine the synchronizers and gears for wear. Replacing worn components or performing a complete rebuild may be required to resolve persistent issues.

Q5

How can I optimize the performance of the M30 transmission?

To optimize the M30 transmission, use high-quality synthetic transmission fluid to reduce friction and heat buildup. Upgrade to a performance clutch and pressure plate for better engagement. Regularly inspect and adjust the clutch linkage for smooth shifting. Additionally, ensure the transmission is properly aligned during installation to minimize wear and improve overall performance.

Factory Service Resources

Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.

1982-1992 Pontiac Firebird Service Manual

Coming Soon

Comprehensive guide covering maintenance, repair, and technical specifications for the 1982-1992 Pontiac Firebird, including the M30 transmission.

Technical Service Bulletin for M30 Transmission

Coming Soon

Official bulletin addressing common issues, updates, and fixes for the M30 transmission in the 1982-1992 Pontiac Firebird.

Pontiac Firebird Parts and Accessories Catalog

Coming Soon

Detailed catalog listing OEM and aftermarket parts, including transmission components, for the 1982-1992 Pontiac Firebird.

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Technical Information
  • All specifications, including torque values, fluid capacities, and maintenance procedures, should be verified against your vehicle's factory service manual.
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About the Author

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Alan Montanye - Automotive Technical Specialist
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Alan Montanye

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