Torque Spec for rear driveshaft bolts?

[ic3man5]

Does anyone know the torque spec for rear driveshaft bolts?

 

 

edit: 2015 Silverado 5.3L LT 6L80 with 3.42 gears if that matters.

[1SLOW1500]

It is a ugh and a ah worth with lock tight. 

I read specs and follow them but on some things I disagree and do it my way.

[newdude]

Bolts for the driveshaft to yoke are 18ft.lbs.

 

They are a ONE TIME USE BOLT.  Must replace with new.  Same for the u-joint straps. 

 

Quote

One-Piece Propeller Shaft Replacement

Removal Procedure

Note: Observe and accurately reference mark all driveline components relative to the propeller shaft and axles before disassembly. These components include the propeller shafts, the drive axles, the pinion flanges, the 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.

 

Note: DO NOT re-use the yoke retainers. DISCARD and replace with NEW only.

 

Caution: When removing the propeller shaft, do not attempt to remove the shaft by pounding on the yoke ears or using a tool between the yoke and the universal joint. If the propeller shaft is removed by using such means, this may lead to premature failure of the joint.

1. Raise the vehicle. Lifting and Jacking the Vehicle
2. Reference mark the propeller shaft to the rear axle pinion yoke.
3. Reference mark the propeller shaft to the transmission or transfer case.
4. Remove the bolts (1) and the yoke retainers (2) from the rear axle pinion yoke (3). DISCARD the bolts.
5. Slide the propeller shaft forward in order to disconnect the propeller shaft from the rear axle pinion yoke.
6. Slide the propeller shaft rearward in order to disconnect the propeller shaft from the transmission or transfer case.
7. Remove the propeller shaft from the vehicle.

Installation Procedure

 

Caution: Refer to Fastener Caution.

1. Inspect the splines of the slip yoke for a sufficient coating of lubricant. If the splines of the slip yoke do not have a sufficient coating, lubricate the internal slip yoke splines with proper lubricant. Adhesives, Fluids, Lubricants, and Sealers
2. Install the propeller shaft into the transmission or transfer case.

   Align the reference marks made during removal.

3. Install the propeller shaft (3) to the rear axle pinion yoke (4).

   Align the reference marks made during removal.

4. Install the NEW yoke retainers (2) and the NEW bolts (1). Tighten to 25 Y (18 lb ft).
5. Lower the vehicle.

 

 

1.  

[Darksky]

Well shitte, I guess I’ll be ordering a new set of straps and some bolts. I’ve not replaced them on other vehicles just as a matter of course. I’ve had my driveshaft up and down a few times of late and did nothing more than inspect and reinstall the bolts and straps, using a dot of threadlocker on the bolts.  Live and learn...