Dodge Challenger 2008-present 8HP90 Transmission Transmission Specifications
Dodge Challenger 2008-present

Dodge Challenger 2008-present 8HP90 Transmission Specifications

This document provides a detailed overview of the 8HP90 transmission specifications for the 2008-Present Dodge Challenger. It includes technical details such as gear ratios, torque capacity, fluid requirements, and maintenance intervals. The 8HP90 transmission, developed by ZF Friedrichshafen AG, is an 8-speed automatic transmission designed for high-performance vehicles. It is known for its durability, smooth shifting, and ability to handle high torque outputs, making it ideal for the Dodge Challenger's powerful engines. This guide is valuable for enthusiasts, mechanics, and owners seeking to understand the transmission's capabilities, perform maintenance, or explore performance upgrades. The specifications provided here are essential for ensuring optimal performance and longevity of the transmission.

Updated

Overview Specifications

This document provides detailed specifications and technical information about the 8HP90 transmission used in the 2008-Present Dodge Challenger. It is designed to assist enthusiasts, mechanics, and engineers in understanding the transmission's features, performance, and maintenance requirements. Use the search and navigation instructions to quickly locate specific details or browse through the sections for a comprehensive understanding of the 8HP90 transmission.

How to Use

Use the search bar to enter keywords related to the 8HP90 transmission, such as 'gear ratios' or 'torque capacity'. The search results will highlight relevant sections and subsections for quick access.

Scroll through the document or use the table of contents to jump to specific sections. Each section is organized into subsections with detailed technical points for easy reference.

Key Specifications

Transmission Type

8-speed automatic

Torque Capacity

900 Nm (664 lb-ft)

Gear Ratios

4.71:1 to 0.67:1

Fluid Capacity

9.5 liters (10 quarts)

Weight

95 kg (209 lbs)

Available Specifications

Transmission Design

This section covers the design and engineering of the 8HP90 transmission, including its architecture, materials, and construction. Learn about the innovations that make this transmission a high-performance component for the Dodge Challenger.

Architecture
  • 8-speed automatic transmission
  • Longitudinal layout for rear-wheel-drive vehicles
  • Compact and lightweight design
  • Modular construction for easy servicing
  • Integrated torque converter
  • Advanced hydraulic control system
Materials
  • High-strength aluminum alloy casing
  • Hardened steel gears for durability
  • Composite materials for weight reduction
  • Corrosion-resistant coatings

Performance Specifications

Explore the performance capabilities of the 8HP90 transmission, including its gear ratios, torque handling, and shift dynamics. This section highlights the transmission's ability to deliver smooth and responsive driving experiences.

Gear Ratios
  • 1st gear: 4.71:1
  • 2nd gear: 3.14:1
  • 3rd gear: 2.10:1
  • 4th gear: 1.67:1
  • 5th gear: 1.29:1
  • 6th gear: 1.00:1
Torque Capacity
  • Maximum torque capacity: 900 Nm (664 lb-ft)
  • Designed for high-performance engines
  • Optimized for aggressive driving conditions
  • Enhanced cooling system for sustained performance

Maintenance and Service

This section provides guidelines for maintaining and servicing the 8HP90 transmission. Learn about recommended service intervals, fluid specifications, and common troubleshooting tips to ensure long-term reliability.

Service Intervals
  • Fluid change every 60,000 miles
  • Filter replacement with fluid change
  • Regular inspection of seals and gaskets
  • Diagnostic scans for error codes
Fluid Specifications
  • Use only approved ATF+4 transmission fluid
  • Fluid capacity: 9.5 liters (10 quarts)
  • Check fluid level when transmission is warm
  • Avoid overfilling to prevent damage

Transmission Specifications

Overview

Type
8-speed automatic transmission
Configuration
Longitudinal
Platform
Chrysler ZF 8HP
Material
Aluminum alloy casing
Location
Rear-wheel drive configuration

Dimensions

Length
28.5 inches (724 mm)
Width
18.9 inches (480 mm)
Height
14.2 inches (360 mm)
Weight
214 lbs (97 kg)
input Shaft Diameter
1.2 inches (30.5 mm)
Output Shaft Diameter
1.5 inches (38.1 mm)
Fluid Capacity
9.5 quarts (9 liters)

Materials

Casing
Aluminum alloy
Gears
High-strength steel
Clutch Packs
Composite friction materials
Seals
Synthetic rubber
Cooling Lines
Stainless steel

Features

Performance
  • Quick shift times (under 200 milliseconds)
  • Adaptive shift programming
  • Torque capacity of 738 lb-ft (1000 Nm)
  • Sport and manual shift modes
Efficiency
  • Wide gear ratio spread (7.0:1)
  • Reduced internal friction
  • Optimized gear spacing
  • Eco mode for fuel savings
Technology
  • Integrated mechatronics module
  • Electronic control unit (ECU)
  • CAN bus communication
  • Adaptive learning software
Durability
  • Hardened gear components
  • High-temperature resistant materials
  • Robust cooling system
  • Sealed against contaminants
integration
  • Compatible with all-wheel drive systems
  • Supports start-stop functionality
  • Seamless integration with Dodge PCM
  • Supports multiple drive modes

Safety Features

Fail Safe
  • Limp-home mode
  • Overheat protection
  • Pressure monitoring
Protection
  • Anti-rollaway feature
  • Shift interlock system
  • Over-rev protection
Monitoring
  • Real-time diagnostics
  • Fluid level sensors
  • Temperature sensors

Comfort Features

Smoothness
  • Low vibration operation
  • Quiet gear engagement
  • Smooth shift transitions
Convenience
  • Paddle shifters
  • Auto park function
  • Hill start assist
Customization
  • Multiple drive modes
  • User-adjustable shift points
  • Personalized shift behavior

Accessories

Performance
  • Transmission cooler
  • Upgraded shift paddles
  • High-performance fluid
Maintenance
  • Fluid change kit
  • Filter replacement kit
  • Diagnostic scanner
Protection
  • Transmission skid plate
  • Heat shield
  • Fluid additive

Maintenance

Service interval
Every 60,000 miles or 48 months
Service Items
  • Fluid and filter replacement
  • Seal inspection
  • Shift quality check
  • Software updates
  • Cooling system inspection
Maintenance Notes
Use only Mopar ATF+4 fluid for optimal performance.

Warranty

Basic
Miles: 36,000
Years: 3
Coverage: Bumper-to-bumper
Powertrain
Miles: 60,000
Years: 5
Coverage: Transmission and drivetrain
Corrosion
Miles: Unlimited
Years: 5
Coverage: Perforation from corrosion
Emissions
Miles: 80,000
Years: 8
Coverage: Emission control components

Production Details

Manufacturer
ZF Friedrichshafen AG
Manufacturing Process
  • Precision CNC machining
  • Automated assembly
  • Laser welding
  • Robotic quality inspection
Quality Control
Testing: Durability testing, Shift quality analysis, Thermal stress testing
Standards: ISO 9001 certified, TS 16949 compliant, Mopar performance standards
Sustainability
  • Recyclable materials
  • Energy-efficient production
  • Waste reduction initiatives
Production Metrics
Units Per Year: 500,000
Defect Rate: < 0.1%
Lead Time: 4 weeks

Service Information for 8hp90 transmission Service

Maintenance and service requirements specific to this component

30,000
24
  • Inspect fluid level and condition
  • Check for leaks
  • Update transmission software
  • Inspect cooling system

Early inspection recommended for high-performance use.

60,000
48
  • Replace transmission fluid and filter
  • Inspect clutch packs
  • Check shift quality
  • Test electronic controls

Use only Mopar ATF+4 fluid for replacement.

120,000
96
  • Complete transmission flush
  • Inspect and replace seals if necessary
  • Test torque converter
  • Perform full diagnostic scan

Major service requires specialized equipment.

Common Questions

Find answers to common questions about torque specifications

Q1

Is the 8HP90 transmission compatible with the 2008-Present Dodge Challenger?

Yes, the 8HP90 transmission is fully compatible with the 2008-Present Dodge Challenger, particularly in high-performance models like the SRT Hellcat and Demon. This 8-speed automatic transmission is designed to handle high torque outputs, making it ideal for the Challenger's powerful engines. It features advanced technology for smooth shifting and improved fuel efficiency, ensuring optimal performance across various driving conditions.

Q2

What are the maintenance requirements for the 8HP90 transmission?

The 8HP90 transmission requires regular maintenance to ensure longevity and performance. It is recommended to check and replace the transmission fluid every 60,000 miles or as specified in the owner's manual. Regular inspections of the transmission system, including seals and gaskets, are also essential. Additionally, ensure the software is updated to the latest version for optimal functionality. Proper maintenance helps prevent issues like overheating and premature wear.

Q3

How do I install or replace the 8HP90 transmission in a Dodge Challenger?

Installing or replacing the 8HP90 transmission in a Dodge Challenger requires precision and expertise. First, disconnect the battery and remove the transmission pan and mounts. Carefully lower the transmission using a hydraulic jack. Install the new transmission by aligning it with the engine and securing it with bolts. Reconnect all electrical connectors, fluid lines, and mounts. Finally, refill the transmission fluid and test the system to ensure proper operation. Professional assistance is recommended for this complex task.

Q4

What are common troubleshooting steps for the 8HP90 transmission?

Common issues with the 8HP90 transmission include rough shifting, fluid leaks, and error codes. Begin by checking the transmission fluid level and condition. Inspect for leaks around seals and gaskets. Use a diagnostic tool to read error codes and identify specific problems. If the transmission is not shifting smoothly, updating the software or recalibrating the system may resolve the issue. For persistent problems, consult a certified technician for further diagnosis and repair.

Q5

How can I optimize the performance of the 8HP90 transmission?

To optimize the performance of the 8HP90 transmission, ensure it is regularly serviced with high-quality transmission fluid. Use performance tuning software to adjust shift points and torque management for enhanced driving dynamics. Installing a transmission cooler can help manage heat during high-performance driving. Additionally, upgrading to reinforced components like mounts and driveshafts can improve durability. Always follow manufacturer guidelines to maintain warranty and ensure safe operation.

Factory Service Resources

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

8HP90 Transmission Service Manual

Coming Soon

This manual provides detailed instructions for servicing and maintaining the 8HP90 transmission, including fluid specifications, torque settings, and diagnostic procedures.

8HP90 Technical Service Bulletin

Coming Soon

This bulletin addresses common issues and updates for the 8HP90 transmission, including software updates, recall information, and repair procedures.

8HP90 Parts and Accessories Guide

Coming Soon

This guide lists all available parts and accessories for the 8HP90 transmission, including performance upgrades, replacement components, and compatible fluids.

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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.
  • Vehicle specifications and procedures may vary by model year, trim level, and region.
  • Always follow the manufacturer's recommended procedures and safety precautions.
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  • If you're unsure about any procedure, consult a qualified professional mechanic.
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About the Author

Expert automotive knowledge and experience

Alan Montanye - Automotive Technical Specialist
ASE

Alan Montanye

Automotive Technical Specialist

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