2017 Ford Explorer XLT, AWD V6 3.5L - Pinion Nut Torque and end play

[Happster]

Hey all. Split open my PTU to inspect and clean and put all new seals in. I am putting a new pinion nut and could use the spec. I've seen 142 nm, which is about 105 ft lbs., but I torqued to 105 ft lbs. and there is still significant end play. Something is off. The deflector moves in and out about 1/8". Video attached. I don't know where I could be getting that kind of play. Bearings and races looked great, well lubricated, minimal sludge in the casing. New output shaft seal kit. I'm perplexed. I'm ready to go with this assembly and will be waiting by my inbox for help.

 

[sidecarnutz]

Gear teeth worn out allowing that excessive play.

 

[Happster]

Gear teeth worn out allowing that excessive play.

There are no gears in it except the pinion gear. Is there supposed to be that play before the other gears go in if you know?

 

[sidecarnutz]

Then the pinion may be excessively worn.

 

[Happster]

Hey all. Split open my PTU to inspect and clean and put all new seals in. I am putting a new pinion nut and could use the spec. I've seen 142 nm, which is about 105 ft lbs., but I torqued to 105 ft lbs. and there is still significant end play. Something is off. The deflector moves in and out about 1/8". Video attached. I don't know where I could be getting that kind of play. Bearings and races looked great, well lubricated, minimal sludge in the casing. New output shaft seal kit. I'm perplexed. I'm ready to go with this assembly and will be waiting by my inbox for help.
View attachment 460554

OK, so I think I obtained some good guidance. I put a new crush collar on and someone told me that 105 ft lbs or torque is not enough to crush it. It is a beefy steel collar. I'm going to keep cranking that nut until the rotational torque is correct and I think that is it. Or I may put the old collar back in and tighten it down to see if there is play. Thoughts still welcome while I explore.

 

[Happster]

OK, so I think I obtained some good guidance. I put a new crush collar on and someone told me that 105 ft lbs or torque is not enough to crush it. It is a beefy steel collar. I'm going to keep cranking that nut until the rotational torque is correct and I think that is it. Or I may put the old collar back in and tighten it down to see if there is play. Thoughts still welcome while I explore.

Yup, that was it. Crushed that new collar down to about .005" end play, barely visible. Took about 200 lbs of torque to crush it, holy shasta! I figured better a c-hair loose than go to far. Truck's got high miles, I'm sending it. I have no rotational torque reference or reference marks anyway.