I'm seeing wildly different specs. Everything Dana I can find says 30ft lbs but highest Grade 8 5/16th fine thread spec says 27ft lbs of torque, standard in fine thread is 13lbs.
Add to that is the bolt heads are marked with a stylized "A" so I'm guessing standard grade. I've been through my manual a couple times and twice through the service standards posted above. It just seems odd that this torque spec is missing.
The new FelPro gasket is comparatively thick and has a double layered "crush zone" on half the width for sealing so torque is more of a concern compared to the old style paper thin gasket. FelPro tech support said no sealer needed but I put just a skiff of silicone on both sides and am at 15lbs and seeing a touch of depression around the bolts.
Thanks for the links above, I'll be looking for a Service Standards booklet.
How about the rear flex line number?