Dorman 986-257 Drive Shaft - Rear

Reliable Drive Shaft Replacement for BMW 545i

The Dorman 986-257 drive shaft is engineered to provide dependable driveline performance for your BMW 545i. Designed with durable steel construction and equipped with universal and CV joints, this drive shaft ensures smooth power transfer and vehicle stability.

• Compressed length of 61.75 inches for precise fitment
• Triprong end type on one side and CV joint on the other
• Constructed from high-strength steel for durability
• Includes universal joints and CV joints for optimal driveline flexibility
• 2.5-inch shaft diameter with 0.083-inch wall thickness
• Regular grade type suitable for standard driving conditions
• Does not include slip yoke or axle nut

Durable Construction and Design Features

This Dorman drive shaft (part number 986-257) is built with a 2.5-inch diameter steel shaft, providing the necessary strength to handle torque and rotational forces in the BMW 545i. The triprong end and CV joint end types allow for proper connection to the vehicle’s driveline components, ensuring smooth operation and reduced vibration. Both universal joints and CV joints are included, enhancing flexibility and accommodating suspension movement. The shaft’s 61.75-inch compressed length and 0.083-inch wall thickness are designed to meet OEM specifications for reliable performance.

Compatible Applications and Common Issues Addressed

• Replacement for worn or damaged drive shafts on BMW 545i models
• Resolves driveline vibrations and noise caused by failing joints
• Addresses issues with uneven power delivery or binding in the driveline
• Restores proper connection between transmission and differential
• Improves vehicle stability and handling by maintaining driveline integrity

Installation Notes and Tips

Ensure the vehicle is securely lifted and supported before beginning installation. Verify the drive shaft length and end types match the original component. Since this drive shaft does not include a slip yoke or axle nut, reuse existing hardware or source separately as needed. Properly torque all fasteners to manufacturer specifications to avoid driveline imbalance or premature wear.

Quality Assurance and Warranty Information

Dorman manufactures this drive shaft to meet industry standards for fit and function. While no specific warranty details are provided, Dorman parts typically undergo quality checks to ensure durability and performance. Using the correct part number 986-257 guarantees compatibility with BMW 545i models, supporting reliable driveline operation.