Need help with pinion seal replacement

[Old Fart]

Everything is going fine except when I measured the rotational force on the pinion nut, I get 2-3 ft.lbs. Seems really loose. The Ford manual does not say which ft. lb is correct. From the forums articles I read, seems that 15-25 ft.lbs should be the numbers I should get. I also counted the exposed threads.

When I re-install, should I torque it to get 2-3 ft. lbs or tighten to get 15-25 ft.lbs?

[98 Snake]

Rotational torque is measured in inch pounds not foot pounds , you will need a dial type torque wrench, 25-30 inch pounds is acceptable, easiest way to do it is mark the pinion nut before removal then tighten to the same spot
Have done hundreds this way without issue

[Old Fart]

Oops...I meant in.lbs, sorry. So do I torque it to 25-30 in.lbs?


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[bbriann]

Just keep in mind 1 degree tighter on nut rotation the inch pound torque reading goes way up fast when near set point.

[Scott]

When I built my diff I used this torque wrench, as I recall it was for bike spokes or something.

https://i.imgur.com/edqIfJL.jpg

[Old Fart]

^^^That's the type I used. I finally just decided to tighten as initially measured at 2-3 in.lbs.

[1986stangfan]

I always set my 8.8” at 18in:lb rotational drag. I have never had any issues


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[ZR]

For me, depends on new or used bearings.

[1986stangfan]

For me, depends on new or used bearings.

I should have clarified, this is always with new bearings and gear sets.


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[ZR]

We snug up to 25 maybe a hair more on new
On used stay in the 15ish range.

[Old Fart]

Good news...Bad news!

Good...job done
Bad...putting tools away, noticed that my in.lbs. torque wrench was a ft.lb one...wtf!
Good...I re-tighten the pinion nut as measured in the initial torque
Bad...I feel old!