How to remove and install a Differential on Mercury Cougar?

First, take out the right half shaft. After that, push the drive shaft forward and lay it against the driveshaft hoop. Jack up and support differential housing then detach bolts holding the rear mount in place. Take off the rear mount from carrier cover. At this time, you may remove front mounting bolts, nuts, bushings, and washers. Put on a pry bar and lower housing to the right while still allowing it to move aside slightly so that you can disconnect the left half shaft with a prybar. Replace differential side seals. Plug it into the left side of the housing and lower completely into position. Substitute side oil seals during the installation process. On the left half shaft, fit a new circlip properly. Lubricate the spline of left half shaft properly. Position the carrier on jack and finally lift slightly to align the left half shaft into differential side gear. Attach carrier to front mounting bolts and engage left half shaft until circlip is seated in differential side gear. Install bushings, washers, and nuts in front mount as well as tighten them adequately for security purposes. Attach the rear mount to housing cover.

Genuine Mercury Cougar Differential

Front Differential

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Mercury Cougar Differential Case
Part Number: E7TZ-4204-A
$136.20 MSRP: $229.00
You Save: $92.80 (41%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Case - Differential
- Replaced by: 5R3Z-4205-AA
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1980-1997 Mercury Cougar | 4 Cyl 2.3L, 6 Cyl 3.3L, 6 Cyl 3.8L, 8 Cyl 4.2L, 8 Cyl 4.6L, 8 Cyl 5.0L | 3AT C3, 3AT C4, 3AT C5, 4AT, 4AT 4R70W, 4AT AOD, 4AT AODE, 4MT, 5MT
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Mercury Cougar Differential Case
Part Number: E7TZ-4204-B
$49.84 MSRP: $69.23
You Save: $19.39 (29%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Case - Differential
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1985-1997 Mercury Cougar | 4 Cyl 2.3L, 6 Cyl 3.8L, 8 Cyl 4.6L, 8 Cyl 5.0L | 3AT C5, 4AT, 4AT 4R70W, 4AT AOD, 4AT AODE, 5MT
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Mercury Cougar Differential Case
Part Number: F5AZ-4204-A
$48.84 MSRP: $64.77
You Save: $15.93 (25%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Case - Differential
- Replaced by: XW4Z-4204-AA
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1990-1997 Mercury Cougar | 6 Cyl 3.8L, 8 Cyl 4.6L, 8 Cyl 5.0L | 4AT, 4AT 4R70W, 4AT AOD, 4AT AODE, 5MT
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Mercury Cougar Differential Assembly
Part Number: 1L8Z-7F465-BA
Product Specifications
- Other Name: Differential Assy
- Manufacturer Note: 1S8P-A*
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2001-2002 Mercury Cougar | 4 Cyl 2.0L, 6 Cyl 2.5L | 4AT CD4E
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Mercury Cougar Differential Case
Part Number: F5AZ-4204-B
Product Specifications
- Other Name: Case - Differential
- Replaced by: 1616
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1990-1997 Mercury Cougar | 6 Cyl 3.8L, 8 Cyl 4.6L, 8 Cyl 5.0L | 4AT, 4AT 4R70W, 4AT AOD, 4AT AODE, 5MT
View related parts
Mercury Cougar Differential Assembly
Part Number: F5RZ-4026-FD
Product Specifications
- Other Name: Differential Assy
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1999-2002 Mercury Cougar | 4 Cyl 2.0L, 6 Cyl 2.5L | 4AT CD4E, 5MT
View related parts
Mercury Cougar Differential Assembly
Part Number: E9SZ-4026-B
Product Specifications
- Other Name: Differential Assy
- Replaced by: 2L5Z-4026-AA
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1986-1995 Mercury Cougar | 4 Cyl 2.3L, 6 Cyl 3.8L, 8 Cyl 4.6L, 8 Cyl 5.0L | 3AT C5, 4AT, 4AT AOD, 4AT AODE, 5MT

Mercury Cougar Differential

Mercury Cougar Differential is a part of the car's power train that transfers power from the engine to the drive wheels for adequately maneuvering the car through corners or handling roads with different surface types. Today in cars, other kinds of differentials including open and limited slip differentials are some of the types used. While the open differentials supply equal power to the wheel, the limited slip differentials do this for the wheels with better grip. However, each of the types has its drawbacks, for example, poor adhesion on weathered floors. This is because there are some frequent troubles, for instance, no differential fluid or bad U-joints, that you must take care to avoid influencing the differential. Simple tasks like observing for any strange sounds that may be emanating from the device and actually checking on it from time to time would go a long way in expanding the device' useful life and denying the repair shop their due. Auto racing enthusiasts may use LSDs to improve their car's handling as well as traction especially in difficult terrains. All in all, the Mercury Cougar Differential is a significant component that is critical in maintaining the ideal condition of the car in terms of ease of handling and other factors.

We provide a wide range of Mercury Cougar Differential at the best prices possible. If you need Mercury Cougar Differential, you can shop with confidence on our website. All our OEM parts come with a manufacturer's warranty and are delivered to your door step with a fast delivery service.

Mercury Cougar Differential Parts Questions & Experts Answers

Differential Case
F5AZ-4204-A
Q: How to remove and install a Differential on Mercury Cougar?
A: First, take out the right half shaft. After that, push the drive shaft forward and lay it against the driveshaft hoop. Jack up and support differential housing then detach bolts holding the rear mount in place. Take off the rear mount from carrier cover. At this time, you may remove front mounting bolts, nuts, bushings, and washers. Put on a pry bar and lower housing to the right while still allowing it to move aside slightly so that you can disconnect the left half shaft with a prybar. Replace differential side seals. Plug it into the left side of the housing and lower completely into position. Substitute side oil seals during the installation process. On the left half shaft, fit a new circlip properly. Lubricate the spline of left half shaft properly. Position the carrier on jack and finally lift slightly to align the left half shaft into differential side gear. Attach carrier to front mounting bolts and engage left half shaft until circlip is seated in differential side gear. Install bushings, washers, and nuts in front mount as well as tighten them adequately for security purposes. Attach the rear mount to housing cover.