TRQ Rear Drivetrain Kit CV Axle and Steering Knuckle Assembly - Direct

In this review of the TRQ Rear Drivetrain Kit the bottom line is straightforward: this four-piece kit is aimed at owners of mid-2000s Ford Explorer, Explorer Sport Trac and Mercury Mountaineer models who want a direct-fit, OE-replacement solution for rear drivetrain and steering components. The reviewer found the kit restores play-free steering feel and axle reliability in most installations, and its biggest selling point is that it bundles both rear CV axle assemblies and rear suspension knuckles into one matched package for faster, coordinated repairs.

Key Features

• Direct Fit: Designed as an OE replacement so each component installs without major modification on compatible Ford and Mercury rear ends.
• Complete 4-Piece Kit: Includes two rear CV axle assemblies and two rear suspension knuckle assemblies so both sides can be serviced at once for balanced performance.
• Upgraded Seals: Elastomeric seals are upgraded to help resist leaks and extend service life compared with worn original parts.
• Moly Greased: Joints are pre-greased with a moly formula to reduce premature wear and provide smoother initial operation after install.
• Vehicle Specific Fitment: OE and aftermarket reference numbers are provided so buyers can check compatibility for 2006-2010 Ford Explorer, 2007-2010 Explorer Sport Trac and 2006-2010 Mercury Mountaineer rears.

Who It's For

The TRQ Rear Drivetrain Kit is best for DIY mechanics and independent shops working on late 2000s Ford Explorer and Mercury Mountaineer vehicles that need a matched set of rear axles and knuckles. Replacing both sides at once is ideal when wear affects handling or when one failed component suggests the opposite side may be near end-of-life.

This kit is less appropriate for drivers who only need a single axle or knuckle replacement and prefer OEM-branded parts for dealer servicing; also those requiring a lifetime warranty or factory retail packaging should compare alternatives before purchase.

Pros & Cons

Pros

• Good fit and finish that matches factory mounting points and steering geometry for restored road-feel.
• Convenient four-piece set allows paired replacement, saving labor time when servicing both sides.
• Improved seals and moly grease offer better initial protection against premature wear.

Cons

• Some customers reported mixed boot durability, including occasional tearing on the passenger side under heavy use.

Specifications

Brand	TRQ
Kit Quantity	4 Piece
Includes	2 Rear CV Axle Assemblies, 2 Rear Suspension Knuckle Assemblies
Fitment Years	2006-2010 Ford Explorer, 2007-2010 Explorer Sport Trac, 2006-2010 Mercury Mountaineer (rear)
Replacement Type	Direct Fit OE Replacement
Notable Features	Upgraded elastomer seals, moly greased joints
OE Reference Numbers	2L2Z4K138BA, 2L2Z4K139BA, and related refs

Our Verdict

The TRQ Rear Drivetrain Kit is a practical, value-oriented option for owners who need matched rear axles and knuckles for compatible Explorers and Mountaineers. It restores steering feel and drivetrain function with direct-fit components and upgraded seals, making it a sensible choice for DIY repairs and independent shops, though buyers should be aware of some reports of boot wear in heavier-use scenarios.

Frequently Asked Questions

Will this kit fit my 2008 Ford Explorer rear?
Check the vehicle-specific fitment information and referenced OE numbers in the listing; the kit is listed as compatible with 2006-2010 Ford Explorer rear applications.

Are the axles pre-greased?
Yes, the CV joints are moly greased at the factory to reduce initial wear and simplify installation.

Does the kit include both knuckles and axles for two sides?
Yes, the package includes two rear CV axle assemblies and two rear suspension knuckles so both left and right rear sides are covered.