i am installing a new pionion seal on the front diff. and i need to found out what the nut gets tourqued to. if anyone knows that would be great b/c i know it needs to be rite.


thanks james

 

I use an impact and set it on level 2 or 3, somewhere around 200 ft/lbs

 

The proper procedure is:
remove wheels, brake calipers and rotors, and prop shaft.
Measure rotating torque of pinion with dial type torque wrench.
(should be 10 - 50 in#)
Pull pinion yoke (don't beat it off) and replace seal.
REplace yoke using new nut.
Tighten nut until achieve orginal turning torque and add 5 in#.
Example: rotating torque was 30 in# orginally, would end up with 35.

Now that you have blown that procedure away.
DO NOT TIGHTEN WITH IMPACT WRENCH.
The life of pinion bearings will expire when overtightened.

AT this point my suggestion is tighten the nut in 10 ft # increments until you acheive a reasonable resistance turning yoke and diff assy through.
What is reasonable? Turning through with hand is not uncomfortable. Perhaps you recall the turning effort before starting procedure.
Good Luck.
Get a factory service manual.

 

thanks dozer12216 i wasnt going to use a IMPACT that is just stupid. i knew there had to be a torque spec.


james

 

Also, you have to get a new nut and washer. They can't be reused

 

you can reuse the old one just clean it up and put some lock tight on it and it will be just fine

 

I'll do that on your truck, not mine. For the cost buy a new crush washer (never to be re-torqued) and nut.

 

It takes 450 ft lbs minimum of torque to crush a Dana 60 crush sleeve so if you get a half inch torque wrench and reinstall original pinion nut with red locktite and pull it to 250 to 300 ft lbs it will be just fine in real world situation. I have repaired many pinion seals on rock crawling rigs this way. If you ever have the distinct pleasure of installing a new gear set with install kit in a dana 60 you will fully appreciate the amount of force that it takes to crush the pinion sleeve while setting your pinion depth thus giving you a good lesson in the fact that there is nothing that you can pull by hand without a huge cheater bar that's gonna even make that crush sleeve wimper in the slightest. Just my opinion. Just did the rear Dana 80 on my 96 Dodge and pulled it back to 300 foot pounds and ran a new pattern and it stayed exactly consistent.