The differential is a system of gears that allows different drive wheels on the same axle to rotate at different speeds, for example when your 2008 Ford Expedition is turning. Your outer wheel travels a longer distance on a wide turning radius, therefor it needs to rotate faster. Without a differential the outer wheel would slip making your 2008 Ford Expedition much harder to handle and wear your tires out at a dramatic rate.

When browsing for a differential there are different terminology you will run across and its important to understand what each one is. Front-wheel-drive (FWD) the differential is alongside the transmission inside a housing, and the unit is called a transaxle. Rear-wheel-drive (RWD) vehicles the differential is between the rear wheels and connected to the transmission by a driveshaft. All-wheel-drive (AWD) and four-wheel-drive (4WD) vehicles add a centre differential or a transfer case to distribute power front and rear.

The simplest and most common differential is the "open differential". It gained its name because the wheels can always turn independently of each other. Its main drawback is that if one wheel doesn’t have traction, such as if it hits ice, it still gets lots of power. It spins helplessly, and you go nowhere. To combat this situation, some manufacturers use electronic systems that detect spinning wheels without traction and send signals to partially engage brakes on that wheel to channel the engine’s power to the other wheel on solid ground. A hydraulic differential lock can be temporarily engaged in a difficult off-road situation when one of the drive wheels digs deeper into snow, mud, or sand.

If you are an enthusiast looking for better vehicle handling for cornering, faster acceleration on the street, strip or track then you may benefit from installing a high-performance ring and pinion set with different gear ratio’s. Browse our digital shelves for your 2008 Ford Expedition to find a huge assortment of premium racing differentials and related components, such as durable and lightweight differential cases, housings, rings and pinions, spider gears, and much more.

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AUBURN GEAR 542090
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Some images might not represent the actual product

AUBURN GEAR 542090 Differential
for 2008 Ford Expedition LIMITED

$733.95

Save: $95.73
Sale Price:

$638.22

Estimated Ship Date: Today

Free DelieveryFree Ground Shipping
In Stock - 1 New In Stock
EnginePositionFit NotesFitment Notes
2008 Ford Expedition LIMITED equipped with
L
 
Rear
 
Limited Slip
For Use w/All Ratios
34 Spline
Accepts ABS Tone Ring
Can Be Used w/IRS
9.75 in. (12 Bolt)
 
2008 Ford Expedition LIMITED equipped with
L
Rear Limited Slip
For Use w/All Ratios
34 Spline
Accepts ABS Tone Ring
Can Be Used w/IRS
9.75 in. (12 Bolt)
,
aFe 46-70152
Please Note:

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aFe 46-70152 Pro Series Differential Cover Rear 5 Qt. Capacity Powdercoat Black w/Machined Fins
for 2008 Ford Expedition LIMITED

$436.17

Save: $56.89
Sale Price:

$379.28

Estimated Ship Date: Today

Free DelieveryFree Ground Shipping
In Stock - 16 New In Stock
EngineFit NotesFitment Notes
2008 Ford Expedition LIMITED equipped with
5.4L V8
 
Position (application): Rear
5 Qt. Capacity: 5 Qt. Capacity
w/Machined Fins: w/Machined Fins
Powdercoat Black 9.75 in. (12 Bolt) Modifications May Be Required On 2010 and Earlier Vehicles~ Will Not Fit Models w/Rear Sway Bar Installed: Powdercoat Black 9.75 in. (12 Bolt) Modifications May Be Required On 2010 and Earlier Vehicles~ Will Not Fit Models w/Rear Sway Bar Installed
Engine VIN Code: 5
Modifications May Be Required On 2010 and Earlier Vehicles~ Will Not Fit Models w/Rear Sway Bar Installed: Modifications May Be Required On 2010 and Earlier Vehicles~ Will Not Fit Models w/Rear Sway Bar Installed
 
2008 Ford Expedition LIMITED equipped with
5.4L V8 Position (application): Rear
5 Qt. Capacity: 5 Qt. Capacity
w/Machined Fins: w/Machined Fins
Powdercoat Black 9.75 in. (12 Bolt) Modifications May Be Required On 2010 and Earlier Vehicles~ Will Not Fit Models w/Rear Sway Bar Installed: Powdercoat Black 9.75 in. (12 Bolt) Modifications May Be Required On 2010 and Earlier Vehicles~ Will Not Fit Models w/Rear Sway Bar Installed
Engine VIN Code: 5
Modifications May Be Required On 2010 and Earlier Vehicles~ Will Not Fit Models w/Rear Sway Bar Installed: Modifications May Be Required On 2010 and Earlier Vehicles~ Will Not Fit Models w/Rear Sway Bar Installed
,
MARK WILLIAMS 39112
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Mark Williams 39112 BILLET STEEL U-JOINT
for 2008 Ford Expedition LIMITED

$123.38

Save: $16.09
Sale Price:

$107.29

Estimated Ship Date: Today

In Stock - 3 New In Stock
EngineFit NotesFitment Notes
2008 Ford Expedition LIMITED equipped with
5.4L V8 Gas SOHC
 
With Ford 8.8"
Series Axle. Fits Models with MW 1350 Series Pinion Yokes with Nuts.
Sport Utility 4-Door
 
2008 Ford Expedition LIMITED equipped with
5.4L V8 Gas SOHC With Ford 8.8"
Series Axle. Fits Models with MW 1350 Series Pinion Yokes with Nuts.
Sport Utility 4-Door
,
MOROSO 85830
Please Note:

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MOROSO 85830 U-Joint Girdle Use w/ 1-3/16" dia cap & 1.668" bolt centers For 1350 Series Race Yokes
for 2008 Ford Expedition LIMITED

$83.94

Save: $10.95
Sale Price:

$72.99

Estimated Ship Date: Today

In Stock - 29 New In Stock
EngineFit NotesFitment Notes
2008 Ford Expedition LIMITED equipped with
5.4L V8 Gas SOHC
 
With 1350 Series Race Yoke
With Ford 8.8 Series Axle
Sport Utility 4-Door
 
2008 Ford Expedition LIMITED equipped with
5.4L V8 Gas SOHC With 1350 Series Race Yoke
With Ford 8.8 Series Axle
Sport Utility 4-Door