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Rebuilding transfer case question.


gw33gp

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I am preparing to pull my transfer case and do at least a partial rebuild. My Ford repair manual indicates the rear output flange nut requires a torque of around 260 ft lbs. Is that correct or a typo? That seems to be very high. I don' have a torque wrench that goes that high.
It also states that the nut and washer are to be replaced. Apparently it is self locking and can only be used once.
 


Denisefwd93

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I would believe it and accept it, and from what I've read, you will need to build a bar to hold the flange and use a super long breaker bar or a great impact driver!
 

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260 lb-ft seems about right. I alway use an impact to remove and reinstall them. I've never replaced the nut or washer, just a little blue locktite.
 

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Sounds about right to me too. I wouldn't bother replacing the nut either.
 

ericbphoto

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That’s in the same range as the torque for the pinion nut on an 8.8 differential. Similar application. I believe it
 

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×3 on a little blue Loctite.

They tell you to use a new nut because it is self-locking. But if you put something to lock it, then it's fine to reuse it. Just be sure to clean the threads of any oil before you reinstall it.
 

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How much do you weigh?

260 FOOT/pounds, is 130 TWO foot/pounds

So with a wrench with a 1 foot handle you need to apply 260 pounds of pressure at the end of the handle
2 foot handle 130 pounds of pressure
3 foot handle 86 pounds of pressure
 
Last edited:

ericbphoto

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At 6.5 ft, my dog can do it
 

gw33gp

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I had thought about using Loctite. Thanks for confirming that is an acceptable approach. If I can't find a proper torque wrench, I will use a 3 ft breaker bar and apply an estimated 87 lbs of force. Again, thanks for confirming the 250 ft-lbs is appropriate.
 

snoranger

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At 6.5 ft, my dog can do it
With an 8:1 gear reduction a good running 2.9L might be able to create enough torque to tighten it. :icon_rofl:

(I'm really trying to move up on this "list".)
 

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