What is the role of the rear axle shaft in the axle assembly and differential of a 2009 Ford F-150?

The rear axle assembly is a hypoid, semi-floating type, where the centerline of the pinion gear is below the centerline of the ring gear. This allows the outer rear tire to turn more quickly than the inner tire when the vehicle goes around a corner. The axleshafts are splined to the differential side gears, so the inner tire turns its side gear more slowly than the outer tire. The differential pinion gears roll around the slower side gear, driving the outer side gear and tire - more quickly. The differential is housed within a casting, known as a "carrier", with a pressed steel cover and the steel axletubes are pressed into and welded to the carrier. An optional locking limited-slip rear axle is also available. This differential allows for normal operation until one wheel loses traction. A limited-slip unit is similar in design to a conventional differential, but includes a series of alternating clutch friction discs and plates which slow the rotation of the differential case when one wheel is on a firm surface and the other on a slippery one. The difference in wheel rotational speed produced by this condition applies additional force to the pinion gears and through the clutch friction discs, which are splined to the axleshafts, equalizes the rotation speed of the axleshaft driving the wheel with traction. Due to the need for special tools and equipment, it is recommended that operations on these models be limited to those described. Where repair or overhaul is required, remove the axle assembly and take it to a rebuilder, or exchange it for a new or reconditioned unit. Always make sure that an axle unit is exchanged for one of identical type and gear ratio.

Genuine 2009 Ford F-150 Axle Shaft

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2009 Ford F-150 Rear Axle Shaft Assembly
Part Number: 9L3Z-4234-B
$335.61 MSRP: $495.00
You Save: $159.39 (33%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Shaft Assy - Rear Axle; Axle Shaft, Axle Shafts
- Position: Driver Side
- Base No.: 4234
- Item Weight: 31.20 Pounds
- Item Dimensions: 9.9 x 9.5 x 31.8 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 9L3Z-4234-B
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
More Info
Fits the following 2009 Ford F-150 Submodels:
- 6 Cyl 3.5L DOHC TIVCT, 6 Cyl 3.7L PFI NA, 8 Cyl 4.6L, 8 Cyl 4.6L Romeo SOHC EFI, 8 Cyl 5.0L MOD DOHC SEFI NA, 8 Cyl 5.4L, 8 Cyl 6.2L OHC NA | 4-Speed Automatic Transmission 4R75E Livonia, 4-Speed Automatic Transmission AODEW/4R70E W/TSS, 4-Speed Automatic Transmission AODEW/4R75E W/TSS, 5-Speed Manual Transmission - Mazda M5R2-C, 6-Speed Automatic Transmission (6R80), Four-Wheel Drive (Part Time) (Left Hand Drive), Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
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2009 Ford F-150 Front Axle Shaft
Part Number: 7L1Z-3B437-A
$158.07 MSRP: $303.64
You Save: $145.57 (48%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Shaft - Front Axle
- Position: Driver Side
- Replaced by: AL1Z-3A427-B
- Item Weight: 24.20 Pounds
- Item Dimensions: 31.1 x 6.0 x 6.0 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 7L1Z-3B437-A
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
More Info
Fits the following 2009 Ford F-150 Submodels:
- 8 Cyl 4.6L, 8 Cyl 4.6L Romeo SOHC EFI, 8 Cyl 5.4L, 8 Cyl 6.2L OHC NA | 4-Speed Automatic Transmission 4R75E Livonia, 4-Speed Automatic Transmission AODEW/4R70E W/TSS, 4-Speed Automatic Transmission AODEW/4R75E W/TSS, 5-Speed Manual Transmission - Mazda M5R2-C, 6-Speed Automatic Transmission (6R80), Four-Wheel Drive (Part Time) (Left Hand Drive), Left Hand Drive
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2009 Ford F-150 Front Axle Shaft
Part Number: 7L1Z-3B436-A
$138.48 MSRP: $290.91
You Save: $152.43 (53%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Shaft - Front Axle
- Position: Passenger Side
- Replaced by: AL1Z-3A428-B
- Item Weight: 23.00 Pounds
- Item Dimensions: 28.0 x 4.7 x 4.7 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 7L1Z-3B436-A
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
More Info
Fits the following 2009 Ford F-150 Submodels:
- 8 Cyl 4.6L, 8 Cyl 4.6L Romeo SOHC EFI, 8 Cyl 5.4L, 8 Cyl 6.2L OHC NA | 4-Speed Automatic Transmission 4R75E Livonia, 4-Speed Automatic Transmission AODEW/4R70E W/TSS, 4-Speed Automatic Transmission AODEW/4R75E W/TSS, 5-Speed Manual Transmission - Mazda M5R2-C, 6-Speed Automatic Transmission (6R80), Four-Wheel Drive (Part Time) (Left Hand Drive), Left Hand Drive
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2009 Ford F-150 Rear Axle Shaft Assembly
Part Number: 9L3Z-4234-D
$314.72 MSRP: $468.33
You Save: $153.61 (33%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Shaft Assembly - Rear Axle; Axle Shaft, Axle Shafts
- Position: Driver Side
- Base No.: 4234
- Item Weight: 21.20 Pounds
- Item Dimensions: 9.8 x 9.5 x 32.1 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 9L3Z-4234-D
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
More Info
Fits the following 2009 Ford F-150 Submodels:
- 6 Cyl 3.5L DOHC TIVCT, 6 Cyl 3.7L PFI NA, 8 Cyl 4.6L, 8 Cyl 4.6L Romeo SOHC EFI, 8 Cyl 5.0L MOD DOHC SEFI NA, 8 Cyl 5.4L, 8 Cyl 6.2L OHC NA | 4-Speed Automatic Transmission 4R75E Livonia, 4-Speed Automatic Transmission AODEW/4R70E W/TSS, 4-Speed Automatic Transmission AODEW/4R75E W/TSS, 5-Speed Manual Transmission - Mazda M5R2-C, 6-Speed Automatic Transmission (6R80), Four-Wheel Drive (Part Time) (Left Hand Drive), Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
View related parts
2009 Ford F-150 Rear Axle Shaft Assembly
Part Number: 9L3Z-4234-A
$261.60 MSRP: $400.00
You Save: $138.40 (35%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Shaft Assy - Rear Axle; Axle Shaft, Axle Shafts
- Position: Passenger Side
- Base No.: 4234
- Item Weight: 27.30 Pounds
- Item Dimensions: 9.8 x 9.5 x 31.5 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 9L3Z-4234-A
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
More Info
Fits the following 2009 Ford F-150 Submodels:
- 6 Cyl 3.5L DOHC TIVCT, 6 Cyl 3.7L PFI NA, 8 Cyl 4.6L, 8 Cyl 4.6L Romeo SOHC EFI, 8 Cyl 5.0L MOD DOHC SEFI NA, 8 Cyl 5.4L, 8 Cyl 6.2L OHC NA | 4-Speed Automatic Transmission 4R75E Livonia, 4-Speed Automatic Transmission AODEW/4R70E W/TSS, 4-Speed Automatic Transmission AODEW/4R75E W/TSS, 5-Speed Manual Transmission - Mazda M5R2-C, 6-Speed Automatic Transmission (6R80), Four-Wheel Drive (Part Time) (Left Hand Drive), Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
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2009 Ford F-150 Rear Axle Shaft Assembly
Part Number: 9L3Z-4234-C
$259.34 MSRP: $382.50
You Save: $123.16 (33%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Shaft Assy - Rear Axle; Axle Shaft, Axle Shafts
- Position: Passenger Side
- Base No.: 4234
- Item Weight: 31.80 Pounds
- Item Dimensions: 10.0 x 9.4 x 30.9 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 9L3Z-4234-C
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
More Info
Fits the following 2009 Ford F-150 Submodels:
- 6 Cyl 3.5L DOHC TIVCT, 6 Cyl 3.7L PFI NA, 8 Cyl 4.6L, 8 Cyl 4.6L Romeo SOHC EFI, 8 Cyl 5.0L MOD DOHC SEFI NA, 8 Cyl 5.4L, 8 Cyl 6.2L OHC NA | 4-Speed Automatic Transmission 4R75E Livonia, 4-Speed Automatic Transmission AODEW/4R70E W/TSS, 4-Speed Automatic Transmission AODEW/4R75E W/TSS, 5-Speed Manual Transmission - Mazda M5R2-C, 6-Speed Automatic Transmission (6R80), Four-Wheel Drive (Part Time) (Left Hand Drive), Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
View related parts
2009 Ford F-150 Rear Axle Shaft Assembly
Part Number: 9L3Z-4234-E
$268.94 MSRP: $396.67
You Save: $127.73 (33%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Shaft Assy - Rear Axle; Axle Shaft, Axle Shafts
- Position: Passenger Side
- Base No.: 4234
- Item Weight: 20.20 Pounds
- Item Dimensions: 33.4 x 6.6 x 7.1 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 9L3Z-4234-E
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
More Info
Fits the following 2009 Ford F-150 Submodels:
- 6 Cyl 3.5L DOHC TIVCT, 6 Cyl 3.7L PFI NA, 8 Cyl 4.6L, 8 Cyl 4.6L Romeo SOHC EFI, 8 Cyl 5.0L MOD DOHC SEFI NA, 8 Cyl 5.4L, 8 Cyl 6.2L OHC NA | 4-Speed Automatic Transmission 4R75E Livonia, 4-Speed Automatic Transmission AODEW/4R70E W/TSS, 4-Speed Automatic Transmission AODEW/4R75E W/TSS, 5-Speed Manual Transmission - Mazda M5R2-C, 6-Speed Automatic Transmission (6R80), Four-Wheel Drive (Part Time) (Left Hand Drive), Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
View related parts
2009 Ford F-150 Front Axle Shaft
Part Number: 7L1Z-3219-A
$160.51 MSRP: $234.67
You Save: $74.16 (32%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Shaft - Front Axle
- Position: Passenger Side
- Replaced by: 7L1Z-3219-B
- Base No.: 3219
- Item Weight: 8.80 Pounds
- Item Dimensions: 9.3 x 8.1 x 39.2 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 7L1Z-3219-A
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
More Info
Fits the following 2009 Ford F-150 Submodels:
- 6 Cyl 2.7L, 6 Cyl 3.0L 4V DOHC TC DSL-LION B , 6 Cyl 3.3L Duratec, 6 Cyl 3.5L Cyclone Petrol TIVCT, 6 Cyl 3.5L DOHC TIVCT, 6 Cyl 3.5L GTDI, 6 Cyl 3.7L PFI NA, 8 Cyl 4.6L, 8 Cyl 4.6L Romeo SOHC EFI, 8 Cyl 5.0L Coyote, 8 Cyl 5.0L MOD DOHC SEFI NA, 8 Cyl 5.4L, 8 Cyl 6.2L OHC NA | 10-Speed Automatic Transmission (10R80), 4-Speed Automatic Transmission 4R75E Livonia, 4-Speed Automatic Transmission AODEW/4R70E W/TSS, 4-Speed Automatic Transmission AODEW/4R75E W/TSS, 5-Speed Manual Transmission - Mazda M5R2-C, 6-Speed Automatic Transmission (6R80), Four-Wheel Drive (Part Time) (Left Hand Drive), Left Hand Drive
View related parts
2009 Ford F-150 Front Axle Shaft
Part Number: 2L3Z-3220-AB
$1124.10 MSRP: $1561.56
You Save: $437.46 (29%)
ADD TO CART
Product Specifications
- Other Name: Shaft - Front Axle; Axle Assembly, Axle Shafts, Drive Axle
- Position: Driver Side
- Replaces: F65Z-3220-AA
- Base No.: 3220
- Item Weight: 5.90 Pounds
- Item Dimensions: 9.1 x 8.3 x 5.9 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 2L3Z-3220-AB
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
More Info
Fits the following 2009 Ford F-150 Submodels:
- 6 Cyl 3.5L DOHC TIVCT, 6 Cyl 3.7L PFI NA, 6 Cyl 4.2L OHV EFI, 8 Cyl 4.6L, 8 Cyl 4.6L Romeo SOHC EFI, 8 Cyl 4.6L Windsor SOHC EFI, 8 Cyl 5.0L MOD DOHC SEFI NA, 8 Cyl 5.4L, 8 Cyl 6.2L OHC NA | 4-Speed Automatic Transmission 4R75E Livonia, 4-Speed Automatic Transmission AODEW/4R70E W/TSS, 4-Speed Automatic Transmission AODEW/4R75E W/TSS, 5-Speed Manual Transmission - Mazda M5R2-C, 6-Speed Automatic Transmission (6R80), Four-Wheel Drive (Part Time) (Left Hand Drive), Left Hand Drive
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2009 Ford F-150 Joint And Stub Shaft Assembly
Part Number: 7L1Z-3B436-B
$145.13 MSRP: $234.55
You Save: $89.42 (39%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Joint And Stub Shaft Assy
- Manufacturer Note: Outboard Joint
- Replaced by: AL1Z-3B436-A
- Item Weight: 13.10 Pounds
- Item Dimensions: 22.5 x 5.1 x 4.9 inches
- Condition: New
- Fitment Type: Direct Replacement
- Require Quantity: 2
- SKU: 7L1Z-3B436-B
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
More Info
Fits the following 2009 Ford F-150 Submodels:
- 8 Cyl 4.6L, 8 Cyl 4.6L Romeo SOHC EFI, 8 Cyl 5.4L, 8 Cyl 6.2L OHC NA | 4-Speed Automatic Transmission 4R75E Livonia, 4-Speed Automatic Transmission AODEW/4R70E W/TSS, 4-Speed Automatic Transmission AODEW/4R75E W/TSS, 5-Speed Manual Transmission - Mazda M5R2-C, 6-Speed Automatic Transmission (6R80), Four-Wheel Drive (Part Time) (Left Hand Drive), Left Hand Drive
View related parts
2009 Ford F-150 Rear Axle Shaft Assembly
Part Number: 9L3Z-4234-F
$273.46 MSRP: $403.33
You Save: $129.87 (33%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Shaft Assy - Rear Axle; Axle Shaft, Axle Shafts
- Position: Driver Side
- Base No.: 4234
- Item Weight: 20.00 Pounds
- Item Dimensions: 32.7 x 6.7 x 7.1 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 9L3Z-4234-F
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
More Info
Fits the following 2009 Ford F-150 Submodels:
- 6 Cyl 3.5L DOHC TIVCT, 6 Cyl 3.7L PFI NA, 8 Cyl 4.6L, 8 Cyl 4.6L Romeo SOHC EFI, 8 Cyl 5.0L MOD DOHC SEFI NA, 8 Cyl 5.4L, 8 Cyl 6.2L OHC NA | 4-Speed Automatic Transmission 4R75E Livonia, 4-Speed Automatic Transmission AODEW/4R70E W/TSS, 4-Speed Automatic Transmission AODEW/4R75E W/TSS, 5-Speed Manual Transmission - Mazda M5R2-C, 6-Speed Automatic Transmission (6R80), Four-Wheel Drive (Part Time) (Left Hand Drive), Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
View related parts
2009 Ford F-150 Shaft - Intermediate
Part Number: 7L1Z-3B414-A
$273.46 MSRP: $403.33
You Save: $129.87 (33%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Position: Driver Side
- Replaced by: AL1Z-3B414-B
- Item Weight: 9.00 Pounds
- Item Dimensions: 4.5 x 4.6 x 10.5 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 7L1Z-3B414-A
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
More Info
Fits the following 2009 Ford F-150 Submodels:
- 8 Cyl 4.6L, 8 Cyl 4.6L Romeo SOHC EFI, 8 Cyl 5.4L, 8 Cyl 6.2L OHC NA | 4-Speed Automatic Transmission 4R75E Livonia, 4-Speed Automatic Transmission AODEW/4R70E W/TSS, 4-Speed Automatic Transmission AODEW/4R75E W/TSS, 5-Speed Manual Transmission - Mazda M5R2-C, 6-Speed Automatic Transmission (6R80), Four-Wheel Drive (Part Time) (Left Hand Drive), Left Hand Drive
View related parts
2009 Ford F-150 Shaft - Intermediate
Part Number: 7L1Z-3B414-B
$273.46 MSRP: $403.33
You Save: $129.87 (33%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Position: Passenger Side
- Replaced by: AL1Z-3B414-A
- Item Weight: 8.00 Pounds
- Item Dimensions: 29.3 x 5.0 x 5.9 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 7L1Z-3B414-B
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
More Info
Fits the following 2009 Ford F-150 Submodels:
- 8 Cyl 4.6L, 8 Cyl 4.6L Romeo SOHC EFI, 8 Cyl 5.4L, 8 Cyl 6.2L OHC NA | 4-Speed Automatic Transmission 4R75E Livonia, 4-Speed Automatic Transmission AODEW/4R70E W/TSS, 4-Speed Automatic Transmission AODEW/4R75E W/TSS, 5-Speed Manual Transmission - Mazda M5R2-C, 6-Speed Automatic Transmission (6R80), Four-Wheel Drive (Part Time) (Left Hand Drive), Left Hand Drive

2009 Ford F-150 Axle Shaft

At FordPartsGiant.com, you will find an extensive inventory of genuine 2009 Ford F-150 Axle Shaft offered at competitive prices online. These manufacturer-backed OEM 2009 Ford F-150 Axle Shaft ensure your satisfaction with their quality and come with a hassle-free return policy and expedited delivery service, guaranteeing a delightful shopping experience.

2009 Ford F-150 Axle Shaft Parts Questions & Experts Answers

Q: What is the role of the rear axle shaft in the axle assembly and differential of a 2009 Ford F-150?
A: The rear axle assembly is a hypoid, semi-floating type, where the centerline of the pinion gear is below the centerline of the ring gear. This allows the outer rear tire to turn more quickly than the inner tire when the vehicle goes around a corner. The axleshafts are splined to the differential side gears, so the inner tire turns its side gear more slowly than the outer tire. The differential pinion gears roll around the slower side gear, driving the outer side gear and tire - more quickly. The differential is housed within a casting, known as a "carrier", with a pressed steel cover and the steel axletubes are pressed into and welded to the carrier. An optional locking limited-slip rear axle is also available. This differential allows for normal operation until one wheel loses traction. A limited-slip unit is similar in design to a conventional differential, but includes a series of alternating clutch friction discs and plates which slow the rotation of the differential case when one wheel is on a firm surface and the other on a slippery one. The difference in wheel rotational speed produced by this condition applies additional force to the pinion gears and through the clutch friction discs, which are splined to the axleshafts, equalizes the rotation speed of the axleshaft driving the wheel with traction. Due to the need for special tools and equipment, it is recommended that operations on these models be limited to those described. Where repair or overhaul is required, remove the axle assembly and take it to a rebuilder, or exchange it for a new or reconditioned unit. Always make sure that an axle unit is exchanged for one of identical type and gear ratio.

Related 2009 Ford F-150 Parts

Alternate Year Models

2008 Ford F-150 Axle Shaft 2010 Ford F-150 Axle Shaft