OE Quality
60-Day Returns

Dorman 946-050 Drive Shaft - Rear
Overview of Dorman 946-050 Drive Shaft for Chevrolet GMC K1500
The Dorman 946-050 drive shaft is designed specifically for Chevrolet and GMC K1500 models, providing a reliable replacement for your vehicle's driveline system. Constructed from aluminum, this drive shaft offers a balance of strength and reduced weight to maintain optimal driveline performance.
- Durable aluminum shaft material for corrosion resistance and weight savings
- Regular grade type suitable for standard driving conditions
- 4-inch shaft diameter ensuring proper fit and torque handling
- 73.125 inches in length with 0.083-inch wall thickness for structural integrity
- Non-greaseable design for maintenance-free operation
- Fixed overall length, not adjustable
- Includes one rear driveshaft unit
Detailed Product Description
This Dorman drive shaft, part number 946-050, is engineered to meet the specifications required by Chevrolet and GMC K1500 trucks. The aluminum shaft material reduces overall weight compared to steel alternatives, which can contribute to improved fuel efficiency and reduced drivetrain stress. With a 4-inch diameter and 0.083-inch wall thickness, the shaft maintains the necessary strength to handle torque and rotational forces during vehicle operation. The fixed length of 73.125 inches ensures a precise fit for the rear driveline assembly without the need for adjustments. This drive shaft is designed without grease fittings, simplifying maintenance requirements.
Common Applications and Problem Resolution
- Replacement for worn or damaged rear driveshafts on Chevrolet and GMC K1500 trucks
- Addresses issues such as vibration or noise caused by bent or imbalanced shafts
- Resolves driveline failures due to corrosion or material fatigue
- Restores proper driveline alignment and torque transfer
- Eliminates maintenance concerns related to grease fittings with a sealed design
Installation Notes and Tips
When installing the Dorman 946-050 drive shaft, ensure the vehicle is securely lifted and supported. Verify the shaft length and diameter match the original equipment specifications for your Chevrolet or GMC K1500. Since this drive shaft is non-greaseable and non-adjustable, no additional lubrication or length modifications are necessary. Torque all fasteners to manufacturer specifications to maintain driveline balance and prevent premature wear.
Quality Assurance and Warranty
Dorman manufactures this drive shaft to meet or exceed OEM standards for fit, form, and function. The aluminum construction provides corrosion resistance and durability under normal operating conditions. While specific warranty details are not provided here, Dorman typically offers limited warranties on their driveline components to cover defects in materials and workmanship.
This part fits 20 vehicles. Search below:
| Year | Make | Model | Body Type | Bed Length | Drive Type | Wheel Base | Position | Notes |
|---|---|---|---|---|---|---|---|---|
| 1999 | Chevrolet | K1500 | Extended Cab Pickup | 6' 6" Foot Bed | 4WD | 141.5" | Rear | wo/Heavy Duty Chassis |
| 1999 | GMC | K1500 | Extended Cab Pickup | 6' 6" Foot Bed | 4WD | 141.5" | Rear | wo/Heavy Duty Chassis |
| 1998 | Chevrolet | K1500 | Extended Cab Pickup | 6' 6" Foot Bed | 4WD | 141.5" | Rear | wo/Heavy Duty Chassis |
| 1998 | GMC | K1500 | Extended Cab Pickup | 6' 6" Foot Bed | 4WD | 141.5" | Rear | wo/Heavy Duty Chassis |
| 1997 | Chevrolet | K1500 | Extended Cab Pickup | 6' 6" Foot Bed | 4WD | 141.5" | Rear | wo/Heavy Duty Chassis |
| 1997 | GMC | K1500 | Extended Cab Pickup | 6' 6" Foot Bed | 4WD | 141.5" | Rear | wo/Heavy Duty Chassis |
| 1996 | Chevrolet | K1500 | Extended Cab Pickup | 6' 6" Foot Bed | 4WD | 141.5" | Rear | wo/Heavy Duty Chassis |
| 1996 | GMC | K1500 | Extended Cab Pickup | 6' 6" Foot Bed | 4WD | 141.5" | Rear | wo/Heavy Duty Chassis |
| 1995 | Chevrolet | K1500 | Extended Cab Pickup | 6' 6" Foot Bed | 4WD | 141.5" | Rear | wo/Heavy Duty Chassis |
| 1995 | GMC | K1500 | Extended Cab Pickup | 6' 6" Foot Bed | 4WD | 141.5" | Rear | wo/Heavy Duty Chassis |
| 1994 | Chevrolet | K1500 | Extended Cab Pickup | 6' 6" Foot Bed | 4WD | 141.5" | Rear | wo/Heavy Duty Chassis |
| 1994 | GMC | K1500 | Extended Cab Pickup | 6' 6" Foot Bed | 4WD | 141.5" | Rear | wo/Heavy Duty Chassis |
| 1993 | Chevrolet | K1500 | Extended Cab Pickup | 6' 6" Foot Bed | 4WD | 141.5" | Rear | wo/Heavy Duty Chassis |
| 1993 | GMC | K1500 | Extended Cab Pickup | 6' 6" Foot Bed | 4WD | 141.5" | Rear | wo/Heavy Duty Chassis |
| 1992 | GMC | K1500 | Extended Cab Pickup | 6' 6" Foot Bed | 4WD | 141.5" | Rear | wo/Heavy Duty Chassis |
| 1991 | Chevrolet | K1500 | Extended Cab Pickup | 6' 6" Foot Bed | 4WD | 141.5" | Rear | wo/Heavy Duty Chassis |
| 1991 | GMC | K1500 | Extended Cab Pickup | 6' 6" Foot Bed | 4WD | 141.5" | Rear | wo/Heavy Duty Chassis |
| 1990 | Chevrolet | K1500 | Extended Cab Pickup | 6' 6" Foot Bed | 4WD | 141.5" | Rear | wo/Heavy Duty Chassis |
| 1990 | GMC | K1500 | Extended Cab Pickup | 6' 6" Foot Bed | 4WD | 141.5" | Rear | wo/Heavy Duty Chassis |
| 1989 | Chevrolet | K1500 | Extended Cab Pickup | 6' 6" Foot Bed | 4WD | 141.5" | Rear | wo/Heavy Duty Chassis |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.