How to service the rear upper control arm on 2004 Ford Mustang?

The first step for servicing the rear upper control arm requires marking the relationship between the shock absorber and protective sleeve while keeping the vehicle at curb height and stationary on level ground. A hoist should lift the vehicle while a jack stand will stabilize the differential housing. The upper arm and bushing must be removed from the axle by discarding the nut and bolt and detaching the arm and bushing from the axle. Take out the upper arm and bushing from the mounting bracket by first discarding both the bolt and nut then removing them from the bracket. Place the upper arm along with the bushing onto the mounting bracket before adding new bolts and nuts yet avoid any bolt tightening stage. Install the bushing along with the upper arm onto the axle while positioning them correctly and inserting fresh bolts without making any initial tightening adjustments. Position the shock absorber for compression at the mark set at curb height then tighten the bracket bolt followed by the axle bolt. Lower the suspension until the shock absorber reaches the marked alignment point at curb height and remove both the jack stand and the vehicle from under the lift. The suspension fasteners should not be used again because you should install new parts of matching part numbers while using the specified torque settings to protect the suspension system integrity.

OEM 2004 Ford Mustang Control Arm

Suspension Arm

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2004 Ford Mustang Lower Control Arm, Front Driver Side Part Number: YR3Z-3079-B
$242.77 MSRP: $333.08
You Save: $90.31 (28%)
ADD TO CART
Product Specifications
- Other Name: Arm Assembly - Front Suspension; Front Left Control Arm and Ball Joint Assembly.
- Position: Front Driver Side
- Replaces: MCSOE-136, XR3Z-3079-BA
- Base No.: 3079
- Item Weight: 15.50 Pounds
- Item Dimensions: 18.7 x 6.9 x 14.2 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: YR3Z-3079-B
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
More Info
Fits the following 2004 Ford Mustang Submodels:
- GT, GT Bullitt, GTS, Mach 1, SVT Cobra, SVT Cobra 10th Anniversary | 8 Cyl 4.6 L GAS, 8 Cyl 5.0 L GAS
View related parts
2004 Ford Mustang Lower Control Arm, Rear Passenger Side Part Number: XR3Z5A649BB
$208.28 MSRP: $288.14
You Save: $79.86 (28%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Arm Assembly - Rear Suspension; Suspension Control Arm, Rear Right Lower; Control Arm
- Position: Rear Lower Passenger Side
- Item Weight: 16.50 Pounds
- Condition: New
- Fitment Type: Direct Replacement
- SKU: XR3Z5A649BB
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
More Info
Fits the following 2004 Ford Mustang Submodels:
- Base, GT, GT Bullitt, Mach 1, SVT Cobra, SVT Cobra 10th Anniversary | 6 Cyl 3.8 L GAS, 6 Cyl 3.9 L GAS, 8 Cyl 4.6 L GAS
View related parts
2004 Ford Mustang Lower Control Arm, Front Driver Side Part Number: YR3Z-3079-A
Product Specifications
- Other Name: Arm Assembly - Front Suspension; Front Left Control Arm and Ball Joint Assembly.
- Position: Front Driver Side
- Replaces: MCSOE-133, XR3Z-3079-AA
- Base No.: 3078
- Item Weight: 17.10 Pounds
- Item Dimensions: 6.5 x 13.4 x 18.5 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: YR3Z-3079-A
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
More Info
Fits the following 2004 Ford Mustang Submodels:
- Base | 6 Cyl 3.8 L GAS, 6 Cyl 3.9 L GAS
View related parts
2004 Ford Mustang Lower Control Arm, Front Passenger Side Part Number: YR3Z-3078-B
Product Specifications
- Other Name: Arm Assembly - Front Suspension; Front Right Control Arm and Ball Joint Assembly.
- Position: Front Passenger Side
- Replaces: XR3Z-3078-BA, MCSOE-108
- Base No.: 3078
- Item Weight: 17.80 Pounds
- Item Dimensions: 6.4 x 13.5 x 19.1 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: YR3Z-3078-B
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
More Info
Fits the following 2004 Ford Mustang Submodels:
- GT, GT Bullitt, GTS, Mach 1, SVT Cobra, SVT Cobra 10th Anniversary | 8 Cyl 4.6 L GAS, 8 Cyl 5.0 L GAS
View related parts
2004 Ford Mustang Lower Control Arm, Front Passenger Side Part Number: YR3Z-3078-A
Product Specifications
- Other Name: Arm Assembly - Front Suspension; Front Right Control Arm and Ball Joint Assembly.
- Position: Front Passenger Side
- Replaces: XR3Z-3078-AA, MCSOE-106
- Base No.: 3078
- Item Weight: 15.80 Pounds
- Item Dimensions: 6.2 x 12.6 x 18.7 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: YR3Z-3078-A
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
More Info
Fits the following 2004 Ford Mustang Submodels:
- Base | 6 Cyl 3.8 L GAS, 6 Cyl 3.9 L GAS
View related parts
2004 Ford Mustang Lower Control Arm, Rear Driver Side Part Number: XR3Z5A649AA
Product Specifications
- Other Name: Arm Assembly - Rear Suspension; Suspension Control Arm, Rear Left Lower; Control Arm
- Position: Rear Lower Driver Side
- Item Weight: 15.50 Pounds
- Condition: New
- Fitment Type: Direct Replacement
- SKU: XR3Z5A649AA
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
More Info
Fits the following 2004 Ford Mustang Submodels:
- Base, GT, GT Bullitt, Mach 1, SVT Cobra, SVT Cobra 10th Anniversary | 6 Cyl 3.8 L GAS, 6 Cyl 3.9 L GAS, 8 Cyl 4.6 L GAS
View related parts
2004 Ford Mustang Lower Control Arm, Front Driver Side Part Number: 2R3Z-3079-A
Product Specifications
- Other Name: Arm Assembly - Front Suspension; Suspension Control Arm, Front Left; Control Arm
- Position: Front Driver Side
- Base No.: 3079
- Item Weight: 15.30 Pounds
- Item Dimensions: 6.1 x 13.3 x 18.4 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 2R3Z-3079-A
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
More Info
Fits the following 2004 Ford Mustang Submodels:
- GT, Mach 1, SVT Cobra, SVT Cobra 10th Anniversary | 8 Cyl 4.6 L GAS
View related parts
2004 Ford Mustang Lower Control Arm, Front Passenger Side Part Number: 2R3Z-3078-A
Product Specifications
- Other Name: Arm Assembly - Front Suspension; Suspension Control Arm, Front Right; Control Arm
- Position: Front Passenger Side
- Base No.: 3078
- Item Weight: 16.50 Pounds
- Item Dimensions: 6.4 x 13.8 x 19.1 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 2R3Z-3078-A
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
More Info
Fits the following 2004 Ford Mustang Submodels:
- GT, Mach 1, SVT Cobra, SVT Cobra 10th Anniversary | 8 Cyl 4.6 L GAS
View related parts
2004 Ford Mustang Lower Control Arm, Rear Part Number: XR3Z-5A649-BA
Product Specifications
- Other Name: Arm Assembly - Rear Suspension; Suspension Control Arm, Rear Lower; Control Arm
- Position: Rear Lower
- Base No.: 5A649
- Item Weight: 6.60 Pounds
- Condition: New
- Fitment Type: Direct Replacement
- Require Quantity: 2
- SKU: XR3Z-5A649-BA
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
More Info
Fits the following 2004 Ford Mustang Submodels:
- Base, GT, GT Bullitt, Mach 1, SVT Cobra, SVT Cobra 10th Anniversary | 6 Cyl 3.8 L GAS, 6 Cyl 3.9 L GAS, 8 Cyl 4.6 L GAS

2004 Ford Mustang Control Arm

If you're seeking quality and affordability, look no further than our extensive inventory of genuine 2004 Ford Mustang Control Arm available at FordPartsDeal.com. You can confidently purchase our OEM 2004 Ford Mustang Control Arm as they are supported by the manufacturer's warranty and our hassle-free return policy, alongside the benefit of our fast delivery service.

2004 Ford Mustang Control Arm Parts Q&A

Q: How to service the rear upper control arm on 2004 Ford Mustang?
A: The first step for servicing the rear upper control arm requires marking the relationship between the shock absorber and protective sleeve while keeping the vehicle at curb height and stationary on level ground. A hoist should lift the vehicle while a jack stand will stabilize the differential housing. The upper arm and bushing must be removed from the axle by discarding the nut and bolt and detaching the arm and bushing from the axle. Take out the upper arm and bushing from the mounting bracket by first discarding both the bolt and nut then removing them from the bracket. Place the upper arm along with the bushing onto the mounting bracket before adding new bolts and nuts yet avoid any bolt tightening stage. Install the bushing along with the upper arm onto the axle while positioning them correctly and inserting fresh bolts without making any initial tightening adjustments. Position the shock absorber for compression at the mark set at curb height then tighten the bracket bolt followed by the axle bolt. Lower the suspension until the shock absorber reaches the marked alignment point at curb height and remove both the jack stand and the vehicle from under the lift. The suspension fasteners should not be used again because you should install new parts of matching part numbers while using the specified torque settings to protect the suspension system integrity.