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Right Hand Front Axle Assembly for 2003-2008 Chrysler 9.25in Front Differential, Part YA C5086666AB
The Yukon Gear YA C5086666AB is a complete right-hand front axle assembly engineered as a direct bolt-in replacement for the Chrysler 9.25 inch front differential used in 2003-2008 Dodge Ram 1500, Ram 2500, and Ram 3500 4WD trucks. Built from 1541H heat-treated alloy steel, this assembly delivers greater strength and fatigue resistance than the factory OEM shaft. At 45.5 inches overall length with a 33-spline inner end, the YA C5086666AB matches OEM dimensions exactly and installs without modification. This is a complete assembly, so there is no need to source individual components separately.
Features and Benefits
- Direct-fit right-hand front axle replacement for 2003-2008 Dodge Ram 1500, Ram 2500, and Ram 3500 with Chrysler 9.25 inch front differential
- 1541H alloy steel construction for superior tensile strength and fatigue resistance over factory OEM material
- 33 spline inner end for correct engagement with the Chrysler 9.25 inch front differential carrier
- 45.5 inch overall length matching factory OEM specification exactly
- Complete assembly including shaft, inner stub, U-joint (1485 series), and all assembled components
- Advanced heat-treating process extends service life under towing, off-road, and daily driving conditions
- Prop 65 compliant information available for California residents
Vehicle Fitment
| Year | Make | Model | Trim |
|---|---|---|---|
| 2003 | Dodge | Ram 2500 | Laramie |
| 2004 | Dodge | Ram 2500 | Laramie |
| 2005 | Dodge | Ram 2500 | Laramie |
| 2006 | Dodge | Ram 2500 | Laramie |
| 2007 | Dodge | Ram 2500 | Laramie |
| 2008 | Dodge | Ram 2500 | Laramie |
| 2003 | Dodge | Ram 2500 | SLT |
| 2004 | Dodge | Ram 2500 | SLT |
| 2005 | Dodge | Ram 2500 | SLT |
| 2006 | Dodge | Ram 2500 | SLT |
| 2007 | Dodge | Ram 2500 | SLT |
| 2008 | Dodge | Ram 2500 | SLT |
| 2003 | Dodge | Ram 2500 | ST |
| 2004 | Dodge | Ram 2500 | ST |
| 2005 | Dodge | Ram 2500 | ST |
| 2006 | Dodge | Ram 2500 | ST |
| 2007 | Dodge | Ram 2500 | ST |
| 2008 | Dodge | Ram 2500 | ST |
| 2006 | Dodge | Ram 2500 | Power Wagon |
| 2007 | Dodge | Ram 2500 | Power Wagon |
| 2008 | Dodge | Ram 2500 | Power Wagon |
| 2003 | Dodge | Ram 3500 | Laramie |
| 2004 | Dodge | Ram 3500 | Laramie |
| 2005 | Dodge | Ram 3500 | Laramie |
| 2006 | Dodge | Ram 3500 | Laramie |
| 2007 | Dodge | Ram 3500 | Laramie |
| 2008 | Dodge | Ram 3500 | Laramie |
| 2003 | Dodge | Ram 3500 | SLT |
| 2004 | Dodge | Ram 3500 | SLT |
| 2005 | Dodge | Ram 3500 | SLT |
| 2006 | Dodge | Ram 3500 | SLT |
| 2007 | Dodge | Ram 3500 | SLT |
| 2008 | Dodge | Ram 3500 | SLT |
| 2003 | Dodge | Ram 3500 | ST |
| 2004 | Dodge | Ram 3500 | ST |
| 2005 | Dodge | Ram 3500 | ST |
| 2006 | Dodge | Ram 3500 | ST |
| 2007 | Dodge | Ram 3500 | ST |
| 2008 | Dodge | Ram 3500 | ST |
| 2006 | Dodge | Ram 1500 | Laramie |
| 2007 | Dodge | Ram 1500 | Laramie |
| 2008 | Dodge | Ram 1500 | Laramie |
| 2006 | Dodge | Ram 1500 | SLT |
| 2007 | Dodge | Ram 1500 | SLT |
| 2008 | Dodge | Ram 1500 | SLT |
| 2006 | Dodge | Ram 1500 | ST |
| 2007 | Dodge | Ram 1500 | ST |
| 2008 | Dodge | Ram 1500 | ST |
Specifications
| Specification | Detail |
|---|---|
| Part Number | YA C5086666AB |
| UPC | 883584214397 |
| Differential | Chrysler 9.25 in. Front |
| Side | Right Hand (Passenger) |
| Spline Count (Inner) | 33 spline |
| Overall Length | 45.5 in. |
| U-Joint Type | 1485 series |
| Material | 1541H Alloy Steel |
| Assembly Type | Complete axle assembly |
| Prop 65 | Not Applicable |
| Warranty | 1 Year Manufacturer Warranty |
What's Included
- One complete right-hand front axle assembly (YA C5086666AB)
- 1485 series U-joint and all pre-assembled components
Frequently Asked Questions
What vehicles does the YA C5086666AB fit?
The YA C5086666AB fits 2003-2008 Dodge Ram 1500, Ram 2500, and Ram 3500 4WD trucks equipped with the Chrysler 9.25 inch front differential. Confirm your axle type via the trim and drivetrain specification before ordering.
What side does the YA C5086666AB replace?
This is the right-hand (passenger side) front axle assembly. For the driver-side left-hand replacement, see part YA C5086667AB.
What is the spline count on the YA C5086666AB?
The inner end features 33 splines, matching the Chrysler 9.25 inch front differential carrier exactly for proper engagement and torque transfer.
Will installing the YA C5086666AB affect my factory warranty under the Magnuson-Moss Warranty Act?
The Magnuson-Moss Warranty Act prevents a vehicle manufacturer from voiding your warranty solely because an aftermarket part was installed. The manufacturer must demonstrate the YA C5086666AB caused the specific failure before denying a warranty claim.
What warranty does Yukon provide on the YA C5086666AB?
Yukon covers this axle assembly under a one-year manufacturer warranty against defects in materials and workmanship.
Is this a complete assembly or just the shaft?
The YA C5086666AB is a complete front axle assembly, pre-assembled with a 1485 series U-joint and all components. No additional parts are required for a standard replacement.
Does this axle require any modifications for installation?
No. The YA C5086666AB is a direct bolt-in replacement at the factory OEM dimensions and spline count. Standard hand tools are sufficient.
Is the YA C5086666AB suitable for lifted trucks or oversized tires?
Yes. The 1541H alloy steel provides improved strength over the factory axle shaft, making the YA C5086666AB a good upgrade for lifted trucks, heavier tire applications, and demanding towing use.
Installation Instructions
- Raise and support the front of the truck on jack stands. Remove the right front wheel.
- Remove the front skid plate if equipped to gain access to the front differential and axle shaft.
- Remove the right front brake caliper, rotor, and hub assembly to expose the axle shaft.
- Remove the hub nut and slide the hub off the spindle.
- Disconnect the inner axle at the front differential by removing the snap ring or retaining clip from the inner stub.
- Carefully slide the old axle shaft out of the differential housing, avoiding damage to the differential seal.
- Slide the new YA C5086666AB into the differential housing, seating the inner splines fully against the side gear.
- Install the retaining snap ring or clip at the inner stub to secure the axle in place.
- Reassemble the hub, rotor, and caliper. Torque the hub nut to the Ram service manual specification.
- Reinstall the skid plate and wheel. Lower the vehicle and road-test in both 2WD and 4WD to confirm proper operation.
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