TrakMotive FD-8138 CV Axle Shaft - Front Left

Front Left CV Axle Shaft for Ford and Mercury

TrakMotive FD-8138 is a new front left CV axle shaft for select Ford Explorer, Ford Explorer Sport Trac, and Mercury Mountaineer applications. It is built with a neoprene boot, 27 inboard splines, 27 outboard splines, and a conventional outboard joint for direct driveline service.

This CV axle shaft is a fitment-based replacement for 2006-2010 Ford Explorer front left, 2007-2010 Ford Explorer Sport Trac front left, and 2006-2010 Mercury Mountaineer front left applications. TrakMotive FD-8138 is supplied with an axle nut and uses a male inboard shaft connection with a conventional outboard shaft connection.

Key Features

• New CV axle shaft for front left driveline service
• Neoprene boot material for joint protection
• 27 inboard splines and 27 outboard splines
• Male inboard joint type with conventional outboard joint type
• Overall compressed length: 25.79 in. (655 mm)
• Axle nut included, M22 x 1.5 thread, self-locking type
• Hex axle nut head with 1 1/4 in. hex size
• ABS tone ring not included

Detailed Description

TrakMotive FD-8138 is a CV axle shaft from the TrakMotive CV Axle Shaft line, built for front left applications on the Ford Explorer, Ford Explorer Sport Trac, and Mercury Mountaineer. The shaft measures 25.79 inches compressed length and uses a male inboard connection with a conventional outboard connection to match the listed driveline configuration. The included axle nut features an M22 x 1.5 thread, self-locking design, and 1 1/4 inch hex size for service replacement.

This part cross-references Monroe Shocks & Struts 71371 for the same application. It is also listed under TrakMotive FD-8138 for catalog matching and replacement lookup.

What It Helps Address

• Clicking or popping from a worn front CV joint
• Vibration during acceleration from a damaged axle shaft
• Grease leakage from a torn or deteriorated boot
• Driveline noise caused by spline or joint wear
• Front left axle replacement after road or mileage-related wear

Installation Notes

Verify the vehicle’s front left application, spline count, and axle length before installation. Confirm whether the vehicle uses ABS hardware, since this axle does not include an ABS tone ring. Inspect the hub, seals, and mating components during service, and torque the axle nut to the vehicle manufacturer’s specification.

Quality Assurance

TrakMotive manufactures this axle shaft as a new replacement part and identifies the product line as ISO 9001:1007 and TS 16949:2009 certified. The part is backed by a limited lifetime warranty.