Replacedthe left front wheel hub assembly on my 2000 F-350 DRW. I have two very different torque specs for the mounting bolts to the steering knuckle. One is 55ft/lbs and the other is 155ft/lbs. Which is correct or is it something different? Don't want to lose the $200-500 assembly(depending on where you purchase it)

 

Hub bearing to steering knuckle nuts-55ft-lbs

 

That was what I was thinking. 155lbs would probably snap/strip the studs or pull the assembly through the knuckle. Thanks.

 

You're welcome

 

Ford's spec is 133 ft-lbs.

I've done a few of these and just used a long handle ratchet or breaker bar to tighten them up.

 

I stand corrected
The specs I got were from a Chiltons manual.
Could they really be that far off like that

 

Chilton's?

Sure.

Those guys can be idiots. Their writers are..... writers, and are sometimes not very-well-versed in the finer points of wrench-turning.

A reasonableness cross-check would have caused them to investigate their published spec more carefully, but...... well, you know.......

And that's what we just did here, a reasonableness check. A lot of folks looked at that number and instinctively said, "Uhhh, let's look that one up again."

It just didn't look right, especially when it comes to holding one of the wheels onto a large pickup truck. You might find a Prius uses that number.

When in doubt, I usually consult Guzzle's pages, as he is a real stickler for details being correct. See:
http://www.guzzle7pt3.com/nblube.php

Pop

 

133lbs-ft is what I used on those bolts.

 

I'll stick with you guys and toss the Chiltons.

 

Don't toss it completely, as there are photos in there that may contribute to your understanding of something.

They can't dork up a photo, at least not too badly....

Of course, they could show a photo that doesn't explain a thing, or even confuses, but.....

Just put the Chilton's on the bottom of the pile, and use it last.

Pop