68189870AA MOPAR Trans Axle Differential

Review MOPAR Genuine Trans-axle Differential

The Mopar 68189870AA Trans-Axle Differential is a high-performance component designed specifically for Dodge and Plymouth muscle cars of the late 1960s and early 1970s. This differential unit is a crucial part of the powertrain system, responsible for transmitting engine power to the wheels while also managing the torque and rotational forces.

The Mopar 68189870AA Differential is a heavy-duty design, featuring an iron case that provides increased strength and durability compared to its factory counterpart. It's also equipped with a 3.54:1 gear ratio, which offers an ideal balance between acceleration and cruising RPMs for muscle cars.

One of the most notable features of this differential is its Positraction limited-slip differential action. This system utilizes clutch packs to transmit engine power to the wheel with the most traction, reducing power loss due to wheel slip and improving overall vehicle performance. The Positraction system also helps prevent tire spin during hard acceleration, ensuring optimal traction and stability.

This Mopar differential boasts improved sealing, which helps prevent leaks and maintains the necessary lubrication for smooth operation. It's also compatible with aftermarket rear end housing and axle assemblies, providing greater flexibility for custom builds and restorations.

Installing the Mopar 68189870AA Trans-Axle Differential requires some technical expertise, as it involves removing the rear end housing, differential cover, and other related components. However, the payoff is significant, as this high-performance differential delivers improved power transfer, enhanced traction, and increased durability, making it an essential upgrade for any serious muscle car enthusiast.

Mopar 68189870AA Trans-Axle Differential: A Detailed Analysis

The Mopar 68189870AA Trans-Axle Differential is a popular aftermarket option for various Dodge, Jeep, and Chrysler vehicles. In this analysis, we will discuss the key features, pros, cons, and a concluding recommendation.

1. Designed for high-performance applications

2. Case material: Cast Iron

3. Gear material: Hardened Steel

4. Pinion and ring gear: 30 Spline

5. Spider gears: Heat-Treated, Carburized Steel

6. Axle shafts: 35 Spline

7. Limited-Slip Differential

8. Application: Various Dodge, Jeep, and Chrysler vehicles

1. Enhanced durability: The use of high-quality materials ensures that the differential can handle heavy loads and high torque.

2. Improved performance: The limited-slip differential provides better traction and grip, especially during cornering and acceleration.

3. Broad application: The Mopar 68189870AA Trans-Axle Differential is designed to fit a wide range of Dodge, Jeep, and Chrysler vehicles.

4. Enhanced towing capacity: The differential's increased strength and durability make it an excellent choice for towing heavy loads.

1. Cost: The Mopar 68189870AA Trans-Axle Differential is a high-performance part and comes with a premium price tag.

2. Installation complexity: Installing the differential requires professional expertise and specialized tools.

3. Potential noise: Some users have reported an increase in differential noise after installation.

The Mopar 68189870AA Trans-Axle Differential is an excellent option for those seeking improved performance, durability, and towing capacity for their Dodge, Jeep, or Chrysler vehicle. However, the premium price tag and installation complexity are important considerations. Ultimately, if you prioritize high performance and durability, and are willing to invest in a professional installation, the Mopar 68189870AA Trans-Axle Differential is a worthy investment.

Details:

Parts must be resalable and in the original packaging. Electrical parts are not returnable. Shipping carrier substitutions may be made at our determination in an attempt to reduce shipping cost the customer.

specifications differentialsdepo:

• brand: Mopar
• mpn: 68189870aa
• part type: Tran Axle
• genuine oem: Yes
• warranty: 1 Year
• fitment type: Direct Replacement
• make: Jeep
• year: 2014 2015 2016 2017 2018 2019 2020
• parts included: Only Part Reference 4 On The Diagram Is Included
• replaces part number: 68110316aa, 68465889aa

general differentialsdepo:

• category: Auto Parts > Transmission Drivetrain > Differentials > Assemblies

returns differentialsdepo:

• paid by: seller
• policy: returns accepted
• time: 30 days

shipping differentialsdepo:

• type: fixed
• service: standard, expedited, overnight
• class: standard, expedited, one-day
• transit: 5-10 days

seller differentialsdepo:

• city: longmont, colorado
• rating: 100.0%
• # reviews: 206

offer differentialsdepo:

• availability: in stock
• prices: $145.95–$167.59
• item condition:
  • Used
  • New
• started: february 25, 2026
• sold #: 12
• options: ship-to-home
• in stock #: 5

payments differentialsdepo:

• other
• wallet: paypal
• credit card: mastercard