Propeller Shaft - Service Manual Update
File in Section: 4 - Drive AxleBulletin No.: 56-41-01
Date: February, 1995
SUBJECT:
Section 4A - "Propeller Shaft"
MODELS:
1995 Chevrolet and GMC Truck C/K Models
A correction to Section 4A "Propeller Shaft" of the 1995 C/K Truck Service Manual has been made. The art depicting the front drive propeller shaft connecting to the transfer case and the torque callout has been changed. In addition, the fastener tightening specification chart has been updated to reflect the torque change.
Propeller Shaft Replacement (Front Drive) Remove or Disconnect (Figure 1)
^ Raise vehicle on hoist.
^ Skid plate (if applicable). Refer to Section 4C.
Important:
It is essential that the positions of all driveline components relative to the propeller shaft and axles be observed and accurately reference marked prior to disassembly. These components include the propeller shafts, drive axles, pinion flanges, output shafts, etc. All components must be reassembled in the exact relationship to each other as they were when removed. In addition, published specifications and torque values, as well as any measurements made prior to disassembly, must be followed.
^ Reference mark the relationship of the propeller shaft to the front axle and the transfer case.
1. Bolts and retainers from front axle.
2. Bolts and retainers from transfer case.
Important:
Do not pound on to disconnect.
3. Propeller shaft.
^ Compress the propeller shaft forward, enough to disengage, then move the propeller shaft rearward.
^ Avoid dropping cap assemblies from the yoke ends.
Clean
All parts with an approved solvent.
Inspect
^ Splines for damage, wear, burrs, and twisting.
^ Universal joint bearings for wear.
^ Propeller shaft for any evidence of damage.
Install or Connect (Figure 1)
^ Extend the propeller shaft to its full length, then compress it about half its stroke.
1. Propeller shaft to front axle.
^ Line up the reference marks made previously.
2. Retainers and bolts.
Tighten:
^ Retainer bolts to 20 Nm (15 lb.ft).
3. Propeller shaft to transfer case.
^ Line up the reference marks made previously.
^ Adjust the propeller shaft length.
4. Retainers and bolts.
Tighten:
^ Retainer bolts to 20 Nm (15 lb.ft).
5. Skid plate (if applicable). Refer to Section 4C.
Slip Yoke Splines
Apply chassis lubricant at the slip spline grease fitting until the grease begins to leave through the vent hole. If the slip spline is dry or corroded, it may be necessary to disconnect the propeller shaft from the vehicle, remove the slip yoke, and wire brush the affected area. Wipe clean before installation.
Bulletin No.: 56-41-01:
Fastener Tightening Specifications