How to remove and reinstall the axle shaft on Ford Mustang?

Loosen the wheel lug nuts, raise the rear of the vehicle, support it securely on jackstands, and remove the wheel. Remove the brake caliper and disc. Remove the cover from the differential carrier and allow the lubricant to drain into a container. For models equipped with a differential oil cooler, disconnect the differential oil cooler temperature sensor, then remove the oil cooler line fasteners. Use a small screwdriver to pry up the two cooler line retainer clips from the fittings and disconnect the differential oil cooler lines from the rear cover. Remove the lock bolt from the differential pinion shaft and slide the notched end of the pinion shaft out of the differential case as far as it will go, positioning a large screwdriver between the rear axle case and a ring gear bolt to keep the differential case from turning while loosening the pinion shaft lock bolt. Push in the outer (flanged) end of the axleshaft and remove the C-lock from the inner end of the shaft, using a magnet if necessary. Withdraw the axleshaft carefully to avoid damaging the oil seal in the axle housing as the splined end passes through it. Installation is the reverse of removal, ensuring to tighten the differential pinion shaft lock bolt to the specified torque, followed by installing the differential cover and refilling the axle with the correct quantity and grade of lubricant.

Genuine Ford Mustang Axle Shaft

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40 Axle Shafts found

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Ford Mustang Shaft Assembly
Part Number: FR3Z-4K138-D
$302.05 MSRP: $445.50
You Save: $143.45 (33%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Shaft Assy; Axle Assembly
- Position: Passenger Side
- Replaced by: FR3Z-4K138-G
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2017-2019 Ford Mustang | 4 Cyl 2.3L TIVCT DI TC | 10-Speed Automatic Transmission (10R80), 6-Speed Automatic Transmission (6R80), 6-Speed Manual Transmission-3160, 6-Speed Manual Transmission-MT82, Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
View related parts
Ford Mustang Rear Axle Shaft Assembly
Part Number: FR3Z-4K139-D
$331.41 MSRP: $493.17
You Save: $161.76 (33%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Shaft Assy - Rear Axle; Axle Assembly
- Position: Driver Side
- Replaces: FR3Z-4K139-A
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2015-2023 Ford Mustang | 4 Cyl 2.3 L GAS, 4 Cyl 2.3L TIVCT DI TC, 6 Cyl 3.7L PFI NA, 8 Cyl 5.0 L GAS, 8 Cyl 5.2 L GAS | 10-Speed Automatic Transmission (10R80), 6-Speed Automatic Transmission (6R80), 6-Speed Manual Transmission-3160, 6-Speed Manual Transmission-MT82, Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
View related parts
Ford Mustang Shaft Assembly
Part Number: FR3Z-4K138-B
$298.32 MSRP: $440.00
You Save: $141.68 (33%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Shaft Assy
- Position: Passenger Side
- Replaced by: FR3Z-4K138-H
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2015-2018 Ford Mustang | 8 Cyl 5.0L MOD DOHC SEFI NA | 10-Speed Automatic Transmission (10R80), 6-Speed Automatic Transmission (6R80), 6-Speed Manual Transmission-3160, 6-Speed Manual Transmission-MT82, Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
View related parts
Ford Mustang Rear Axle Shaft Assembly
Part Number: FR3Z-4K139-B
$199.50 MSRP: $291.67
You Save: $92.17 (32%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Shaft Assy - Rear Axle
- Position: Driver Side
- Replaced by: FR3Z-4K139-J
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2015-2017 Ford Mustang | 8 Cyl 5.0L MOD DOHC SEFI NA | 6-Speed Automatic Transmission (6R80), 6-Speed Manual Transmission-3160, 6-Speed Manual Transmission-MT82, Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
View related parts
Ford Mustang Shaft Assembly
Part Number: KR3Z-4K138-C
$325.83 MSRP: $546.33
You Save: $220.50 (41%)
ADD TO CART
Product Specifications
- Other Name: SHAFT ASY; Axle Assembly
- Position: Passenger Side
- Replaces: KR3Z-4K138-A
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2020-2022 Ford Mustang | 4 Cyl 2.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.2 L GAS
View related parts
Ford Mustang Shaft Assembly
Part Number: FR3Z-4K138-J
$281.16 MSRP: $440.00
You Save: $158.84 (37%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: SHAFT ASY; Axle Assembly
- Position: Passenger Side
- Replaced by: FR3Z-4K138-H
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2020-2023 Ford Mustang | 4 Cyl 2.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.2 L GAS
View related parts
Ford Mustang Rear Axle Shaft Assembly
Part Number: FR3Z-4K139-J
$199.50 MSRP: $291.67
You Save: $92.17 (32%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: SHAFT ASY - REAR AXLE; Axle Assembly
- Position: Driver Side
- Replaces: FR3Z-4K139-B, FR3Z-4K139-F, FR3Z-4K139-E
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2020-2023 Ford Mustang | 4 Cyl 2.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.2 L GAS
- 2015-2018 Ford Mustang | 8 Cyl 5.0L MOD DOHC SEFI NA | 10-Speed Automatic Transmission (10R80), 6-Speed Automatic Transmission (6R80), 6-Speed Manual Transmission-3160, 6-Speed Manual Transmission-MT82, Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
View related parts
Ford Mustang Shaft Assembly
Part Number: FR3Z-4K138-G
$302.05 MSRP: $445.50
You Save: $143.45 (33%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: SHAFT ASY; Axle Assembly
- Position: Passenger Side
- Replaces: FR3Z-4K138-A, FR3Z-4K138-D
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2015-2025 Ford Mustang | 4 Cyl 2.3 L GAS, 4 Cyl 2.3L TIVCT DI TC, 6 Cyl 3.7L PFI NA, 8 Cyl 5.0 L GAS, 8 Cyl 5.2 L GAS | 10-Speed Automatic Transmission (10R80), 6-Speed Automatic Transmission (6R80), 6-Speed Manual Transmission-3160, 6-Speed Manual Transmission-MT82, Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
View related parts
Ford Mustang Rear Axle Shaft Assembly
Part Number: KR3Z-4K139-E
$127.68 MSRP: $186.67
You Save: $58.99 (32%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: SHAFT ASY - REAR AXLE; Axle Assembly
- Position: Driver Side
- Replaces: KR3Z-4K139-B
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2024-2025 Ford Mustang | 4 Cyl 2.3 L GAS, 8 Cyl 5.0 L GAS
View related parts
Ford Mustang Rear Axle Shaft Assembly
Part Number: FR3Z-4K139-H
$303.97 MSRP: $448.33
You Save: $144.36 (33%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: SHAFT ASY - REAR AXLE; Axle Assembly
- Position: Driver Side
- Replaces: FR3Z-4K139-G, FR3Z-4K139-C
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2015-2020 Ford Mustang | 4 Cyl 2.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.2 L GAS, 8 Cyl 5.2L | 10-Speed Automatic Transmission (10R80), 6-Speed Automatic Transmission (6R80), 6-Speed Manual Transmission-3160, 6-Speed Manual Transmission-MT82, Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
View related parts
Ford Mustang Rear Axle Shaft Assembly
Part Number: KR3Z-4K139-G
$165.30 MSRP: $241.67
You Save: $76.37 (32%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: SHAFT ASY - REAR AXLE; Axle Assembly
- Position: Driver Side
- Replaces: KR3Z-4K139-D
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2021-2025 Ford Mustang | 4 Cyl 2.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.2 L GAS
View related parts
Ford Mustang Rear Axle Shaft Assembly
Part Number: KR3Z-4K139-F
$140.22 MSRP: $205.00
You Save: $64.78 (32%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: SHAFT ASY - REAR AXLE; Axle Assembly
- Position: Driver Side
- Replaces: KR3Z-4K139-C
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2024-2025 Ford Mustang | 4 Cyl 2.3 L GAS, 8 Cyl 5.0 L GAS
View related parts
Ford Mustang Shaft Assembly
Part Number: KR3Z-4K138-D
$115.14 MSRP: $168.33
You Save: $53.19 (32%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: SHAFT ASY; Axle Assembly
- Position: Passenger Side
- Replaces: KR3Z-4K138-B
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2021-2025 Ford Mustang | 4 Cyl 2.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.2 L GAS
View related parts
Ford Mustang Rear Axle Shaft Assembly
Part Number: KR3Z-4K139-A
$386.46 MSRP: $570.00
You Save: $183.54 (33%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: SHAFT ASY - REAR AXLE; Axle Assembly
- Position: Driver Side
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2020-2022 Ford Mustang | 4 Cyl 2.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.2 L GAS
View related parts
Ford Mustang Shaft Assembly
Part Number: FR3Z-4K138-F
$266.25 MSRP: $392.70
You Save: $126.45 (33%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: SHAFT ASY; Axle Assembly
- Position: Passenger Side
- Replaces: FR3Z-4K138-C
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2015-2020 Ford Mustang | 4 Cyl 2.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.2 L GAS, 8 Cyl 5.2L | 10-Speed Automatic Transmission (10R80), 6-Speed Automatic Transmission (6R80), 6-Speed Manual Transmission-3160, 6-Speed Manual Transmission-MT82, Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
View related parts
Ford Mustang Rear Axle Shaft Assembly
Part Number: JR3Z-4K139-D
$379.12 MSRP: $559.17
You Save: $180.05 (33%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: SHAFT ASY - REAR AXLE; Axle Assembly
- Position: Driver Side
- Replaces: JR3Z-4K139-B, JR3Z-4K139-A
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2018-2023 Ford Mustang | 4 Cyl 2.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.0L DOHC EFI Modular, 8 Cyl 5.0L MOD DOHC SEFI NA, 8 Cyl 5.2 L GAS | 10-Speed Automatic Transmission (10R80), 6-Speed Manual Transmission-3160, 6-Speed Manual Transmission-MT82, Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
View related parts
Ford Mustang Shaft Assembly
Part Number: KR3Z-4K138-B
$115.14 MSRP: $168.33
You Save: $53.19 (32%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: SHAFT ASY; Axle Assembly
- Position: Passenger Side
- Replaced by: KR3Z-4K138-D
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2021-2023 Ford Mustang | 4 Cyl 2.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.2 L GAS
View related parts
Ford Mustang Shaft Assembly
Part Number: FR3Z-4K138-E
$198.09 MSRP: $440.00
You Save: $241.91 (55%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Shaft Assy; Axle Assembly
- Position: Passenger Side
- Replaced by: FR3Z-4K138-H
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2018-2019 Ford Mustang | 8 Cyl 5.0L DOHC EFI Modular, 8 Cyl 5.0L MOD DOHC SEFI NA | 10-Speed Automatic Transmission (10R80), 6-Speed Manual Transmission-3160, 6-Speed Manual Transmission-MT82, Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
View related parts
Ford Mustang Shaft Assembly
Part Number: FR3Z-4K138-C
$266.25 MSRP: $392.70
You Save: $126.45 (33%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Shaft Assy
- Position: Passenger Side
- Replaced by: FR3Z-4K138-F
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2015-2019 Ford Mustang | 8 Cyl 5.2L | 10-Speed Automatic Transmission (10R80), 6-Speed Automatic Transmission (6R80), 6-Speed Manual Transmission-3160, 6-Speed Manual Transmission-MT82, Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
View related parts
Ford Mustang Rear Axle Shaft Assembly
Part Number: FR3Z-4K139-C
$303.97 MSRP: $448.33
You Save: $144.36 (33%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Shaft Assy - Rear Axle
- Position: Driver Side
- Replaced by: FR3Z-4K139-H
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2015-2019 Ford Mustang | 8 Cyl 5.2L | 10-Speed Automatic Transmission (10R80), 6-Speed Automatic Transmission (6R80), 6-Speed Manual Transmission-3160, 6-Speed Manual Transmission-MT82, Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)

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1-20 of 40 Results

Ford Mustang Axle Shaft

The Ford Mustang Axle Shaft sends engine torque to the drive wheels while keeping them aligned under vehicle weight. The first automobiles had one-piece solid rear Axle Shafts. These shafts were fixed in a live axle, with their splined ends secured by means of C-clips or bolts. Thus, both wheels turned together on straight roads. Subsequent iterations of the Mustang, which incorporated independent rear suspension systems, came equipped with paired half Axle Shaft units. These shafts had CV joints allowing for flexibility during wheel motion. This technology permitted the differential to rotate the wheels at different speeds while navigating through turns. The updated configurations reduce the unsprung mass and ease the ride. However, both Axle Shaft designs depend upon high strength steel that resists twisting as the Ford V8 or turbo four suddenly applies thrust. Every Mustang still has splines that engage the side gears, bearings that allow them to rotate, and seals that keep lube in Ford axle tubes. Worn bearings, damaged CV boots, and bent Axle Shaft splines generate unusual noise or fluid leaks. The choice between solid or half Axle Shaft gives each Ford performance model its unique feel, and today's Mustang fans benefit from this proven power path.

We provide a wide range of Ford Mustang Axle Shaft at the optimal prices. If you need Ford Mustang Axle Shaft, you can shop with confidence on our website. All our OEM parts come with a manufacturer's warranty and are delivered to your doorstep with a fast delivery service.

Ford Mustang Axle Shaft Parts Questions & Experts Answers

Rear Axle Shaft Assembly
5R3Z-4234-AD
Q: How to remove and reinstall the axle shaft on Ford Mustang?
A:
Loosen the wheel lug nuts, raise the rear of the vehicle, support it securely on jackstands, and remove the wheel. Remove the brake caliper and disc. Remove the cover from the differential carrier and allow the lubricant to drain into a container. For models equipped with a differential oil cooler, disconnect the differential oil cooler temperature sensor, then remove the oil cooler line fasteners. Use a small screwdriver to pry up the two cooler line retainer clips from the fittings and disconnect the differential oil cooler lines from the rear cover. Remove the lock bolt from the differential pinion shaft and slide the notched end of the pinion shaft out of the differential case as far as it will go, positioning a large screwdriver between the rear axle case and a ring gear bolt to keep the differential case from turning while loosening the pinion shaft lock bolt. Push in the outer (flanged) end of the axleshaft and remove the C-lock from the inner end of the shaft, using a magnet if necessary. Withdraw the axleshaft carefully to avoid damaging the oil seal in the axle housing as the splined end passes through it. Installation is the reverse of removal, ensuring to tighten the differential pinion shaft lock bolt to the specified torque, followed by installing the differential cover and refilling the axle with the correct quantity and grade of lubricant.