OEM Mercury Montego Drive Shaft

Mercury Montego Drive Shaft Parts Questions & Experts Answers

• Drive Shaft, Rear
  7F9Z-4R602-A
  Q: How to Service and Repair the Drive Shaft on Mercury Montego?

  A: Service and repairs on the driveshaft must begin by setting the vehicle to NEUTRAL position on a hoist. Start by removing the Muffler and tailpipe before detaching the exhaust support brace by removing its bolts followed by reinstallation and tightening the bolts to 30 Nm (22 ft. lbs.). The driveshaft needs index marking at three key points for rear axle pinion flange and power take-off (PTO) flange together with center bearing bracket to stop Noise Vibration and Harshness issues. Install fresh driveshaft flange bolts for every removal procedure since old bolts must be discarded when disconnecting from the rear axle pinion flange and the PTO flange; tighten new bolts to 25 Nm (18 ft. lbs.) through crosswise bolt patterns. Proceed to take out the driveshaft by removing the center bearing bracket bolts and replace it while tightening these bolts to 30 Nm (22 ft. lbs.). Installation of a fresh driveshaft requires disconnecting center bearing bolts while also taking out the center bearing bracket to be followed by new bolt installation and post-installation tightness set at 20 Nm (15 ft. lbs.). Finish up the installation by initially manually tightening the driveshaft flange bolts to PTO flange and rear axle pinion flange before tightening the center bearing bracket bolts and unwinding the driveshaft according to the previous uninstall steps.