Ford 6L2Z-4602-A
Drive Shaft

A 4x2 vehicle maintenance requires locating it on a hoisting system with NEUTRAL selected. Marks on the extension housing and driveshaft need to match before separation and you should place an index mark onto the transmission output shaft to match the extension housing mark when removing them. The balance of the system can be maintained by marking the driveshaft flange alignment with the pinion flange. The procedure requires discarding the four driveshaft flange bolts followed by new bolt installation requiring a torque of 112 Nm (83 ft. lbs.). A proper tool should be used for gently prying operations at the designated area to take apart the driveshaft flange yoke from the pinion flange because of their tight connection. The driveshaft flange must be evenly tightened onto the pinion flange through cross-bolt pattern application. The original driveshaft flange bolts should get treatment with Threadlock and Sealer TA-25 when new bolts are not accessible because this product satisfies Ford specification WSK-M2G351-A5. Cover the exposed threads of bolts in Threadlock and Sealer TA-25 before reversing the removal process for installation.

Service of the rear one-piece driveshaft on a four-wheel drive vehicle needs the vehicle to be in NEUTRAL position on a hoist before starting work. The skid plate needs to be removed only if it exists. The driveshaft flange needs index-marking to the transfer case rear output flange together with pinion flange index-marking to ensure balanced driveshaft operation. The maintenance starts by removing and disposing of the four driveshaft flange bolts so install four new ones torqued to 112 Nm (83 lb-ft). The next step involves removing four transfer case rear output flange bolts to replace them with new ones that should be tightened to 112 Nm (83 lb-ft). The connector process for driveshaft flange separation should not include hardware striking so utilize an appropriate tool as a displacement device in the marked segment. The process ends with driveshaft removal after the disconnecting of driveshaft flanges. The installation of driveshaft flanges requires you to position them exactly on pinion flanges then tighten bolts evenly in a cross pattern as you reverse the removal steps.

A hoisted four-wheel drive vehicle must be placed in NEUTRAL mode before servicing its two-piece driveshaft units. You need to take out the two nuts from the driveshaft center bearing bracket and lock them at 55 Nm (41 lb-ft) torque when you install them. Next, index-mark the constant velocity (CV) joint to the transfer case output flange and the rear universal joint flange to the differential pinion flange. Replace all existing six CV joint bolts with new ones then fasten all six bolts to 30 Nm (22 lb-ft). Also replace the three CV joint washers with new ones. The service requires removal of the four driveshaft flange bolts followed by installation of new bolts which need tightening to 112 Nm (83 lb-ft). The flange disconnection between driveshaft and differential pinion requires only a suitable tool to pry while avoiding hammer contact on any components on this connection. Remove the driveshaft towards the rear while moving the front section over the frame crossmember until it exits. In order to finish this service install the part by performing the reverse steps from removal.

Index-mark the driveshaft and the extension housing.

Avoid hammering; use a suitable tool to pry in the designated area.

Index-mark the rear U-joint flange to the differential pinion flange.

Discard the old bolts and tighten new ones to 19 Nm (14 ft. lbs.).

Follow the reverse of the removal procedure.

Tighten them to 112 Nm (83 ft. lbs.).

Bleed air from the slip joint boot and crimp the slip boot clamps using commercially available crimp pliers.

Avoid hammering; use a suitable tool to pry in the designated area.

Tighten the bracket to 55 Nm (41 lb-ft) upon reinstallation.

Reverse the removal procedure and install new fasteners as needed.

Ensure the vehicle is in NEUTRAL and positioned on a hoist.