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 2015 Ram 2500 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 2015 Ram 2500 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 2015 Ram 2500 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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Arb Usa RD254
Please Note:

Some images might not represent the actual product

Arb Usa RD254 Differential
for 2015 Ram 2500 POWER

$1,415.65

Save: $184.65
Sale Price:

$1,231.00

Estimated Ship Date: Today

Free DelieveryFree Ground Shipping
In Stock - 5 New In Stock
EngineFit NotesFitment Notes
2015 Ram 2500 POWER equipped with
L
 
Axle: AAM 9.25
Shaft: 1.37"
Spline: 33
Ratio: All
Confirm ring gear is standard not 'thick' design
 
2015 Ram 2500 POWER equipped with
L Axle: AAM 9.25
Shaft: 1.37"
Spline: 33
Ratio: All
Confirm ring gear is standard not 'thick' design
,
Arb Usa RD139
Please Note:

Some images might not represent the actual product

Arb Usa RD139 Differential
for 2015 Ram 2500 POWER

$1,331.70

Save: $173.70
Sale Price:

$1,158.00

Estimated Ship Date: Today

Free DelieveryFree Ground Shipping
In Stock - 7 New In Stock
EngineFit NotesFitment Notes
2015 Ram 2500 POWER equipped with
L
 
Axle: AAM 11.5
Shaft: 1.56"
Spline: 30
Ratio: All
 
2015 Ram 2500 POWER equipped with
L Axle: AAM 11.5
Shaft: 1.56"
Spline: 30
Ratio: All
,
Dana 5-160X
Please Note:

Some images might not represent the actual product

Dana 5-160X Universal Joint
for 2015 Ram 2500 POWER

$30.53

Save: $3.98
Sale Price:

$26.55

Estimated Ship Date: Today

In Stock - 1 New In Stock
EngineFit NotesFitment Notes
2015 Ram 2500 POWER equipped with
6.4L V8 Gas OHV
 
[Universal Joint] Front Driveshaft at Front Axle
4WD
1.188in Bearing Cap Diameter
with Outside Snap Rings
2 Piece Driveshaft
Cap Dia: 1.188in
Cap to Cap: 4.188in
Front Driveshaft at Front Axle
Greaseable
with 1410 Series Driveshaft
with 4.188in Outside Snap Ring Dimension
Quantity needed per vehicle: 1
Wagon Crew Cab Pickup 4-Door
 
2015 Ram 2500 POWER equipped with
6.4L V8 Gas OHV [Universal Joint] Front Driveshaft at Front Axle
4WD
1.188in Bearing Cap Diameter
with Outside Snap Rings
2 Piece Driveshaft
Cap Dia: 1.188in
Cap to Cap: 4.188in
Front Driveshaft at Front Axle
Greaseable
with 1410 Series Driveshaft
with 4.188in Outside Snap Ring Dimension
Quantity needed per vehicle: 1
Wagon Crew Cab Pickup 4-Door