OE Quality
60-Day Returns

Dorman 522-638 Suspension Control Arm and Ball Joint Assembly - Front Left Upper or Front Right Upper
Durable Suspension Control Arm and Ball Joint Assembly for Dodge Ram
The Dorman 522-638 suspension control arm and ball joint assembly is engineered to restore precise steering and suspension performance for Dodge Ram 2500 and Ram 3500 trucks. Designed with quality materials and pre-greased components, this assembly ensures reliable operation and long service life.
- Pre-greased for immediate use and reduced maintenance
- Includes grease fitting for easy lubrication
- Light suspension grade type suitable for regular driving conditions
- Durable steel control arm with black finish for corrosion resistance
- Rubber bushings included to absorb vibrations and reduce noise
- Press-in ball joint with threaded stud for secure mounting
- Mounting hardware included for straightforward installation
- Control arm dimensions: maximum width 288.5 mm, maximum length 237 mm
- Single mounting hole with 12.3 mm diameter
Product Details and Construction
This Dorman suspension control arm and ball joint assembly (part number 522-638) is constructed from forged and cast steel, providing strength and durability required for heavy-duty use in Dodge Ram 2500 and Ram 3500 models. The assembly comes pre-greased and includes a grease fitting, allowing for easy maintenance and extended component life. Rubber bushings are integrated to minimize road vibrations and improve ride comfort. The ball joint is press-in mounted with a threaded stud, ensuring a secure fit and reliable steering response. The black finish on the control arm offers additional protection against corrosion and wear.
Compatible Vehicles and Applications
This assembly is specifically compatible with Dodge Ram 2500 and Ram 3500 trucks, making it a direct replacement for worn or damaged suspension components. It is designed for light suspension grade use, suitable for regular driving and moderate load conditions.
- Restores proper suspension geometry and alignment
- Eliminates clunking or knocking noises from worn ball joints
- Improves steering stability and control
- Reduces vibration and harshness from damaged bushings
- Addresses uneven tire wear caused by faulty control arms
Installation Notes and Tips
Installation of the Dorman 522-638 control arm and ball joint assembly requires basic suspension tools and mechanical knowledge. The included mounting hardware simplifies the process. Ensure the grease fitting is accessible for future lubrication. It is recommended to perform a wheel alignment after installation to maintain proper handling and tire wear.
Quality Assurance and Warranty
Dorman parts are manufactured to meet or exceed OEM specifications, providing reliable performance and durability. This suspension control arm and ball joint assembly undergoes rigorous quality checks to ensure fit and function. Warranty information is available through Dorman and may vary by distributor.
| Brand | Dorman |
|---|---|
| Part Number | 522-638 |
| Pre-Greased | Yes |
| Grease Fitting Included | Yes |
| Suspension Grade Type | Light |
| Bushings Included | Yes |
| Ball Joint Mounting Type | Press in |
| Ball Joint Stud Type | Threaded |
| Control Arm Material | Steel |
| Mounting Hardware Included | Yes |
| Mounting Hole Quantity | 1 |
| Adjustable | No |
| Control Arm Maximum Width | 288.5 |
| Control Arm Color | Black |
| Ball Joint Thread Diameter | 14 |
| Control Arm Maximum Length | 237 |
| Bushing Material | Rubber |
| Ball Joint Included | Yes |
| Ball Joint Installed | Yes |
| Control Arm Type | Casting/forged |
| Grade Type | Regular |
| Mounting Hole Diameter | 12.3 mm |
| Package Contents | Control arm and ball joint assembly |
This part fits 12 vehicles. Search below:
| Year | Make | Model | Drive Type | Position | Notes |
|---|---|---|---|---|---|
| 2005 | Dodge | Ram 2500 | RWD | Front Left Upper | w/Steel Arms |
| 2005 | Dodge | Ram 2500 | RWD | Front Right Upper | w/Steel Arms |
| 2005 | Dodge | Ram 3500 | RWD | Front Left Upper | w/Independent Front Suspension; w/Steel Arms |
| 2005 | Dodge | Ram 3500 | RWD | Front Right Upper | w/Independent Front Suspension; w/Steel Arms |
| 2004 | Dodge | Ram 2500 | RWD | Front Left Upper | w/Steel Arms |
| 2004 | Dodge | Ram 2500 | RWD | Front Right Upper | w/Steel Arms |
| 2004 | Dodge | Ram 3500 | RWD | Front Left Upper | w/Independent Front Suspension; w/Steel Arms |
| 2004 | Dodge | Ram 3500 | RWD | Front Right Upper | w/Independent Front Suspension; w/Steel Arms |
| 2003 | Dodge | Ram 2500 | RWD | Front Left Upper | w/Steel Arms |
| 2003 | Dodge | Ram 2500 | RWD | Front Right Upper | w/Steel Arms |
| 2003 | Dodge | Ram 3500 | RWD | Front Left Upper | w/Independent Front Suspension; w/Steel Arms |
| 2003 | Dodge | Ram 3500 | RWD | Front Right Upper | w/Independent Front Suspension; w/Steel Arms |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.