Chevrolet 25792320 Shaft Assembly, Propeller

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A drive shaft is a tube that carries power between the transmission or transfer case and the differential. There are universal joints on either end of the rear drive shaft and on the front end of the front drive shaft. The front of the rear drive shaft has a splined yoke that slides into the extension housing of the transmission or transfer case, permitting it to be moved back and forth during vehicle operation. An oil seal prevents this leakage. Very little maintenance is required for the drive shaft assembly, but it may become necessary to replace universal joints if they develop problems. Drive shafts should be kept clean and checked for damage. Driving noise or vibration usually reveals issues with this part. When inspecting, look at its surface for dents or cracks, as well as for oil leakage from both ends. The U-joints should have free play without binding, rattling or rocking in them. Make sure you also tighten up all bolts securing the driveshaft in place. On 4WD models, check out the front driveshaft too including any seepage around its sleeve yoke. Looseness in the jointity of front driveaxles can be determined by checking; also look for grease or oil leaks emanating from rubber boots as well as axle flanges.

To remove the rear driveshaft, lower the rear of the driveshaft and slide the front out of the transmission or transfer case. Be sure to wrap a plastic bag over the housing to prevent fluid loss and contamination.

Remove the splash shield.

Make sure the retaining ring is in position on the end of the intermediate shaft.

Before installing the rear driveshaft, you should remove the plastic bag, clean the area, and slide the front of the driveshaft back into the transmission or transfer case.

During inspection, the driveshaft should be visually checked for dents or cracks, and for oil leakage at the front and rear. The universal joints should be checked for proper operation without binding, noise, or looseness. The driveshaft mounting bolts should also be checked.