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pinion nut

denny

New Member
Joined
Jul 2, 2013
Messages
6
My 9 inch was leaking through the seal on the yolk. I purchases a seal and removed the nut and replaced the seal. I did not know this was the nut that set the crush ring and back lash. Could someone please let me know if this is just a torque setting or do I need to do more.
Denny @ 503-713-8551
 

Ourobos

Bronco Guru
Joined
Jan 7, 2008
Messages
1,225
Loc.
Big Island Hawaii
Pinion nuts are tightened with new crush sleeve untill the correct rotational torque is achieved, not nessecarily a torque spec. per say.
 

74strokerbronco

Full Member
Joined
Aug 21, 2013
Messages
321
Loc.
Monmouth, OR
I beleive you should be able to reinstall the yoke without a new crush collar,.it should be already crushed to spec inless your pinion bearings are worn, it takes alot of torque to crush it further. so put some blue locktite on the threads and take the nut down tight. the pinion with a inch pound torque wrench should take 96-144 inch pounds to turn the pinion gear and it's bearings after your yoke nut is tightened for proper preload. I have seen crush collars take over 250 foot lbs to even start them to crush. so if you tighten up the nut with some locktite to around 75-100 foot lbs it will easily hold the yoke and should not crush the collar further then it already is thus not changing the pinion bearing preload anymore then it originally was. now if it was already out of spec on preload thats a whole nother process.
 

broncnaz

Bronco Guru
Joined
May 22, 2003
Messages
24,341
X2 on using lock tite on the nut. While its usually recommended that you replace the crush sleeve and pinion nut. You can get away with the old ones in most cases. Id probably step the torque up to around 150. Witha new spacer the recommended torque is 175 .
 

Teal68

Contributor
Bronco Guru
Joined
Mar 28, 2013
Messages
2,571
Loc.
Inlet Beach
I mark the nut to the threads with white out so that when I tighten it back down I can put it to the same exact spot.
 
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