F 550 rear hub torque specs?

[Hardline]

I have a F-550 that I need to pull the rear hub off and change the seal. I seen it has the nut that you tighten to spec and back off so many notches. Could someone give me the tightening specs for this truck. Axle code is K8 if you need it. I think it is the Dana 135 but some have said that they changed in the later years to the Dana 110. Thanks JJ

[cliford]

i believe if im getting the right not your trying to tighten the spec is 70lb-ft that is for "rear hub nut". for "rear hub bolt" im seeing 77lb-ft

[Hardline]

Are you saying that the bearing nut is 70 ft lbs and the bolts for the axle is 77 ft lbs? JJ

[cliford]

ok are you are talking about the hub nut the big nut. not the 8 smaller bolts

[Hardline]

Originally Posted by cliford

ok are you are talking about the hub nut the big nut. not the 8 smaller bolts

I need the specs on the big hub nut. It is a single nut that has the notches when tightening. On the F 350 it was something like tighten to 65ftlbs then back off like 4-7 clicks or something like that. The torque on the 8 bolts would be handy also. JJ

[cliford]

ok going off of shopkey5.com sorry you have to have an account to use it. but anyways for the big nut under description it says. rear hub nut (to set bearings, back off the hub nut 90 degrees, retighten.) and the torque spec for that is 70 footpounds. then for the 8 small bolts
(axle shaft bolts) im showing 98 foot pounds

[Hardline]

Thanks, I just got it finished up. JJ

[cliford]

yup anytime. glad i didnt see a post about something breaking thats the worst feeling ever

[mudshark]

Hardline,
I was searching for the specs on the axle nut on my motor home, F53 chassis, which has the same axle as your f550, I believe its the Dana 135, what did you finally come up with on the torque and how many clicks back.
Also do you know whats the best way to get oil back into the hub, Ive heard that I need to jack up the other side so the oil runs into the hub, have you heard that?

Scott