I just greased the suspension and also had to tighten almost all the grease fittings, It didn't look like any grease was ever put in them. I will eventually get some good ones from Grainger's and change them all.
In our owners book on page 59 it also says to tighten the axle bolts every 6 months to 145-155lbs. I checked them all at 110lbs that I had set for my lug nuts already and they were even loose to that setting. I think this 145lbs in the book has to be wrong, I felt like they would break even at 110Lbs. All were loose and I am using a dial torque wrench from Grainger's.
2012 Ford F450 Lariat FX4 dually, 2013 Redwood 36FB Red and Black Painted