Jasper Engines & Transmissions, the nation’s leader in remanufactured drivetrain products, is offering complete remanufactured GM front axle actuator assemblies for 4WD and AWD late model SUVs.  These actuator assemblies fit the following vehicles:

• 2002-2009 Chevy Trailblazer
• 2002-2008 GMC Envoy
• 2002-2003 Oldsmobile Bravada
• 2004-2007 Buick Rainier
• 2003-2007 Isuzu Ascender

“These assemblies cannot be purchased new from the dealership, only the parts can be purchased separately,” says Wayne Mehringer, JASPER Differential Division Manager.

The 4WD actuator assembly includes a new electric shift motor installed on the housing, two side gears that spline into the left and right axle shafts, along with a shift fork and collar that shifts the vehicle into, and out of, four-wheel drive. The AWD actuator has a metal plate covering the electric shift motor mount. Internally, the assembly uses a coupler gear which connects both left and right axle shafts together, making the vehicle all-wheel drive.

JASPER uses a synthetic grease in their remanufactured actuators in place of the standard lithium-style complex grease. “The synthetic grease has better lubricant flow, especially in cold conditions,” says Mehringer.

In addition, one major complaint from vehicle owners is a squealing, or squalling, noise coming from the actuator. Mehringer says the problem occurs when dry seals rub against the axle shaft. “These seals, if not pre-lubricated, will cause that condition when the shaft is turning. Here at JASPER, all axle shaft seals are pre-lubricated during assembly.”

For more information on the remanufactured rear axle assemblies and differentials of Jasper Engines & Transmission products, call our automotive service center. 

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