68677055AA MOPAR Differential

Review MOPAR Genuine Differential Case

The Mopar 68677055AA Differential is a high-performance aftermarket component designed specifically for Dodge and Plymouth muscle cars from the late 1960s and early 1970s. This differential is engineered to provide superior strength, durability, and handling compared to the original factory units.

The core of this differential is a nodular iron housing, which is significantly stronger than the cast iron used in the factory units. It boasts a 3.54:1 gear ratio, making it an excellent choice for those seeking a good balance between acceleration and cruising comfort. The gears are made of heat-treated steel, ensuring they can withstand the high torque loads generated by these powerful muscle cars.

One of the most notable features of the Mopar 68677055AA Differential is its heavy-duty ring and pinion setup. The ring gear is 32 spline and is held in place by a thick, 1350 Series clutch pack. The pinion gear is also 32 spline, ensuring a strong and reliable connection between the driveshaft and the differential.

This differential also includes an upgrade to a limited-slip differential, providing superior traction and stability during aggressive driving. The limited-slip design allows the differential to distribute power evenly to both wheels during cornering or when one wheel encounters traction loss, making it an ideal choice for those who enjoy taking their muscle cars to the track or pushing them to their limits on the street.

The Mopar 68677055AA Differential is also designed with ease of installation in mind. It comes with all new seals, bearings, and mounting hardware, making it a straightforward upgrade for those looking to improve the performance and handling of their classic muscle car.

In summary, the Mopar 68677055AA Differential is a high-performance aftermarket component that provides superior strength, durability, and handling to late 1960s and early 1970s Dodge and Plymouth muscle cars. With its strong nodular iron housing, heavy-duty ring and pinion setup, and upgrade to a limited-slip differential, this differential is an excellent choice for those seeking to enhance the performance and driving experience of their classic muscle car.

Buying a Mopar 68677055AA differential for your vehicle can offer several advantages, but it also comes with some potential drawbacks. Here are the pros and cons to help you make an informed decision.

1. OEM Quality: This differential is an original equipment manufacturer (OEM) part produced by Mopar, which means it is designed to meet the same specifications and standards as the original component in your vehicle.

2. Enhanced Performance: Upgrading to a new differential can improve your vehicle's overall performance, especially if your current differential is worn out or damaged. A new differential will ensure smooth power transfer to your wheels, reducing vibrations and improving handling.

3. Durability: Mopar differential components are known for their robustness and durability. By investing in a replacement Mopar differential, you can expect long-lasting performance and peace of mind.

4. Warranty Coverage: Mopar offers a warranty on their replacement parts, providing you with additional protection against manufacturing defects or failures.

1. Cost: A Mopar differential can be a significant investment compared to aftermarket alternatives. The cost may be a deterrent for some vehicle owners, especially if they are on a tight budget.

2. Availability: Depending on the specific make, model, and year of your vehicle, a Mopar differential may not be readily available at your local dealership or parts store. This could result in a longer wait time for the part, potentially delaying repairs or upgrades.

3. Installation Complexity: Installing a differential requires specialized knowledge and tools. If you are not confident in your ability to install the part yourself, you may need to pay for professional installation, which can add to the overall cost.

A Mopar 68677055AA differential can offer enhanced performance, OEM quality, and durability. However, it comes with a higher cost compared to aftermarket alternatives and may be less readily available. Consider your budget, vehicle needs, and installation capabilities before making a decision. If you prioritize OEM quality, long-term performance, and peace of mind, a Mopar differential might be the best choice for you. Otherwise, you may want to explore aftermarket options that could offer more affordable alternatives while still delivering reliable performance. Ultimately, the decision depends on your priorities, budget, and the specific requirements of your vehicle.

Details:

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

specifications differentialsdepo:

• brand: Mopar
• mpn: 68677055aa
• part type: Case
• genuine oem: Yes
• warranty: 1 Year
• fitment type: Direct Replacement
• parts included: Only Part Reference 17 On The Diagram Is Included

shipping differentialsdepo:

• class: standard
• transit: 6-12 days
• type: fixed
• carrier: ups
• service: ups ground

payments differentialsdepo:

• credit card: visa
• wallet: paypal
• other

returns differentialsdepo:

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

seller differentialsdepo:

• # reviews: 31
• rating: 100.0%
• city: austin, texas

offer differentialsdepo:

• sold #: 13
• in stock #: 4
• started: january 15, 2026
• prices: $1598.50–$1699.32
• item condition: New
• options: ship-to-home
• availability: in stock

general differentialsdepo:

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