Dodge Ram 2500 1981-1993 Drivetrain Specifications
Explore detailed drivetrain specifications for the 1981-1993 Dodge RAM-2500, including transmission types, transfer case configurations, axle ratios, and drive systems. Ideal for maintenance, repairs, and performance upgrades.
Overview Specifications
This document provides detailed specifications and technical information about the drivetrain of the 1981-1993 Dodge RAM-2500. It is designed to assist enthusiasts, mechanics, and owners in understanding the vehicle's drivetrain components, configurations, and performance characteristics. Use the search and navigation instructions to quickly find specific details or browse through sections for a comprehensive overview.
How to Use
Use the search functionality to locate specific terms or components within the document. Enter keywords like 'transmission' or 'axle ratio' to find relevant sections quickly.
Navigate through the document by scrolling through sections or using the table of contents. Each section is organized into subsections with detailed technical points for easy reference.
Key Specifications
Engine Power (5.9L V8)
170-230 hp
Transmission (Manual)
4-speed or 5-speed
Axle Ratio (Standard)
3.54:1
Transfer Case (NP208)
Part-time 4x4
Towing Capacity
Up to 10,000 lbs
Available Specifications
Engine and Transmission
This section covers the engine options and transmission configurations available for the 1981-1993 Dodge RAM-2500. It includes details on engine types, horsepower, torque, and transmission types, as well as their compatibility with different drivetrain setups.
Engine and Transmission
This section covers the engine options and transmission configurations available for the 1981-1993 Dodge RAM-2500. It includes details on engine types, horsepower, torque, and transmission types, as well as their compatibility with different drivetrain setups.
Engine Options
- 5.2L V8 (318 cu in) engine with 140-170 hp
- 5.9L V8 (360 cu in) engine with 170-230 hp
- 6.6L Cummins Turbo Diesel I6 engine (from 1989) with 160-400 hp
- Gasoline engines paired with 4-speed manual or 3-speed automatic transmissions
- Diesel engine paired with 5-speed manual or 4-speed automatic transmissions
Transmission Types
- 4-speed manual transmission (A833)
- 3-speed automatic transmission (727 TorqueFlite)
- 5-speed manual transmission (Getrag G360 for diesel models)
- 4-speed automatic transmission (A518 for diesel models)
- Transfer case options for 4x4 models
Transfer Case and Driveline
This section provides information on the transfer case and driveline components, including configurations for 4x4 models. It covers gear ratios, drive modes, and driveline durability.
Transfer Case and Driveline
This section provides information on the transfer case and driveline components, including configurations for 4x4 models. It covers gear ratios, drive modes, and driveline durability.
Transfer Case Options
- NP208 part-time transfer case
- NP241 full-time transfer case (later models)
- 2H, 4H, and 4L drive modes
- Chain-driven design for durability
- Aluminum housing for reduced weight
Driveline Components
- Heavy-duty driveshafts for towing and hauling
- U-joints designed for high torque applications
- Rear axle options: Dana 60 or Dana 70
- Front axle options: Dana 44 or Dana 60 (4x4 models)
- Axle ratios ranging from 3.54:1 to 4.10:1
Axles and Differentials
This section details the axle and differential configurations for the Dodge RAM-2500, including gear ratios, locking differentials, and axle strength for various applications.
Axles and Differentials
This section details the axle and differential configurations for the Dodge RAM-2500, including gear ratios, locking differentials, and axle strength for various applications.
Rear Axle Specifications
- Dana 60 rear axle standard on most models
- Dana 70 rear axle optional for heavy-duty applications
- Limited-slip differential available
- Gear ratios: 3.54:1, 3.73:1, 4.10:1
- Axle capacity up to 6,500 lbs
Front Axle Specifications
- Dana 44 front axle standard on 4x4 models
- Dana 60 front axle optional for heavy-duty 4x4 models
- Open differential standard, locking differential optional
- Gear ratios matching rear axle
- Axle capacity up to 4,500 lbs
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Component Specifications
Overview
- Type
- 4x4 or 4x2
- Configuration
- Front-engine, rear-wheel drive or four-wheel drive
- Platform
- Truck chassis
- Material
- Steel and aluminum components
- Location
- Underbody, center-mounted transfer case
Dimensions
- Driveshaft Length
- 60.5 inches (153.7 cm)
- Transfer Case Width
- 14.2 inches (36.1 cm)
- Axle Track Width
- 65.5 inches (166.4 cm)
- Differential Gear Ratio
- 3.55:1 or 4.10:1
- Propeller Shaft Diameter
- 3.5 inches (8.9 cm)
- Transfer Case Weight
- 85 lbs (38.6 kg)
- Rear Axle Weight
- 320 lbs (145.1 kg)
Materials
- Driveshaft
- High-strength steel
- Transfer Case
- Aluminum housing with steel gears
- Differential
- Cast iron housing with hardened steel gears
- Axles
- Forged steel
- U-Joints
- Hardened steel with grease fittings
Features
- Transfer Case
-
- Manual shift lever
- 2-speed gear reduction
- Part-time 4WD system
- Neutral position for towing
- Differential
-
- Limited-slip option
- Heavy-duty ring and pinion
- Sealed bearings
- 10-bolt cover
- Driveshaft
-
- Balanced for high-speed operation
- Greaseable u-joints
- Spline connection to transfer case
- Double-cardan joint on 4x4 models
- Axles
-
- Full-floating rear axle
- 8-lug wheel hubs
- Dana 60 or Dana 70 rear axle
- Semi-floating front axle on 4x4 models
Safety Features
- Structural integrity
-
- Reinforced axle tubes
- Heavy-duty u-joints
- Protective skid plates
- Stability
-
- Locking hubs for 4x4 models
- Limited-slip differential option
- Weight distribution for towing
Comfort Features
- Noise Reduction
-
- Balanced driveshaft
- Insulated transfer case
- Sealed bearings
- Vibration Control
-
- Rubber-mounted differential
- Dampened u-joints
- Balanced axle shafts
Accessories
- Transfer Case
-
- Shift-on-the-fly kit
- Skid plate
- Heavy-duty fluid
- Differential
-
- Locking differential kit
- Gear ratio upgrade
- Axle truss
- Driveshaft
-
- Heavy-duty u-joints
- Driveshaft loop
- Balance weights
Maintenance
- Service interval
- Every 30,000 miles or 24 months
- Service Items
-
- Change differential fluid
- Inspect u-joints
- Check driveshaft balance
- Lubricate slip yoke
- Inspect axle seals
- Maintenance Notes
- Use GL-5 gear oil in differentials, check for leaks regularly
Warranty
- Basic
- Miles: 36,000Years: 3Coverage: Defects in materials and workmanship
- Powertrain
- Miles: 60,000Years: 5Coverage: Transfer case, differentials, and driveshaft
- Corrosion
- Miles: 100,000Years: 7Coverage: Perforation from corrosion
- Emissions
- Miles: 50,000Years: 5Coverage: Emissions-related components
Production Details
- Manufacturer
- Chrysler Corporation
- Manufacturing Process
-
- Casting of differential housings
- Forging of axle shafts
- CNC machining of gears
- Heat treatment of critical components
- Quality Control
- inspection: 100% inspection of gearsTesting: Dynamometer testing of transfer casesStandards: Meets SAE and ISO standards
- Sustainability Practices
-
- Recycling of metal shavings
- Use of recycled aluminum
- Energy-efficient manufacturing
- Production Metrics
- Units Per Day: 500Defect Rate: 0.5%Lead Time: 2 weeks
Service Information for drivetrain Service
Maintenance and service requirements specific to this component
- Inspect u-joints for wear
- Check differential fluid level
- Lubricate slip yoke
- Inspect driveshaft balance
- Check axle seals for leaks
Use only manufacturer-recommended fluids
- Change differential fluid
- Replace u-joints if necessary
- Inspect transfer case fluid
- Check axle bearings
- Test 4WD engagement
Special tools required for u-joint replacement
- Rebuild transfer case
- Replace axle seals
- Inspect ring and pinion gears
- Check driveshaft alignment
- Test limited-slip differential function
Major service requires professional equipment
Frequently Asked Questions
Find answers to common questions about torque specifications
Q1 What drivetrain components are compatible with the 1981-1993 Dodge RAM-2500?
What drivetrain components are compatible with the 1981-1993 Dodge RAM-2500?
The 1981-1993 Dodge RAM-2500 typically features a 4x4 or 4x2 drivetrain configuration, with options for manual or automatic transmissions. Compatible components include the NP208 or NP241 transfer case, Dana 60 or Dana 70 rear axles, and front axles like the Dana 44 or Dana 60. Ensure compatibility by verifying the vehicle's VIN and specific model year, as variations exist between years and trim levels.
Q2 What are the maintenance requirements for the drivetrain of a 1981-1993 Dodge RAM-2500?
What are the maintenance requirements for the drivetrain of a 1981-1993 Dodge RAM-2500?
Regular maintenance for the drivetrain includes checking and replacing transfer case and differential fluids every 30,000 miles, inspecting U-joints and CV joints for wear, and ensuring proper lubrication of driveline components. Grease the driveshaft slip yoke and U-joints every 5,000 miles. Monitor for unusual noises or vibrations, which may indicate worn components requiring immediate attention.
Q3 How do I replace the transfer case on a 1981-1993 Dodge RAM-2500?
How do I replace the transfer case on a 1981-1993 Dodge RAM-2500?
To replace the transfer case, first, disconnect the battery and drain the transfer case fluid. Remove the driveshafts, shift linkage, and wiring harness. Support the transmission and transfer case with a jack, then unbolt the transfer case from the transmission. Carefully lower and remove the old unit. Install the new transfer case, ensuring proper alignment and torque specifications, and reconnect all components.
Q4 What should I do if my 1981-1993 Dodge RAM-2500 drivetrain is making unusual noises?
What should I do if my 1981-1993 Dodge RAM-2500 drivetrain is making unusual noises?
Unusual noises may indicate worn U-joints, a failing transfer case, or differential issues. Inspect the driveshaft for play or damage, check the transfer case and differential fluid levels, and listen for grinding or whining sounds. Replace worn U-joints or seals, and ensure proper lubrication. If the issue persists, consult a professional mechanic for further diagnosis.
Q5 How can I optimize the performance of my 1981-1993 Dodge RAM-2500 drivetrain?
How can I optimize the performance of my 1981-1993 Dodge RAM-2500 drivetrain?
To optimize performance, upgrade to high-quality synthetic fluids for the transfer case and differentials. Consider installing a heavy-duty driveshaft or aftermarket U-joints for improved durability. Regularly inspect and maintain drivetrain components, and ensure proper alignment and balance of the driveshaft. Adding a transmission cooler can also enhance performance, especially under heavy loads or towing conditions.
Factory Service Resources
Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.
1981-1993 Dodge RAM-2500 Service Manual
Coming SoonComprehensive service manual covering drivetrain, engine, and electrical systems for the 1981-1993 Dodge RAM-2500.
Technical Service Bulletin: Drivetrain Updates
Coming SoonBulletin detailing common drivetrain issues and recommended updates for the 1981-1993 Dodge RAM-2500.
Dodge RAM-2500 Parts and Accessories Catalog
Coming SoonCatalog listing OEM and aftermarket parts for the 1981-1993 Dodge RAM-2500, including drivetrain components.
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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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