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-   -   how to check rear axle pinion nut torque (http://www.ramforumz.com/showthread.php?t=108963)

ramram 03-31-2012 06:44 PM

how to check rear axle pinion nut torque
 
Hi,

Im new here. Been shadow browsing the forums for a year now and I decided to join since I stuck right now.

I replaced the rear axle pinion nut on my 02 ram with the corporate 9 axle (9.25?). It took 10 turns to take the nut out but now Im only at 8 and 1/8 turn and I cant turn it any longer. I used a big cheater pipe and a dewalt electric impact wrench (345 ft lbs of torque) granted I may not be in the best position to do this job since Im doing it without the truck raised.

I dont feel any play on the yoke and I feel like I can feel some roughness (like bearings) when I turn the yoke. Its like I overtightened it.

Can I reassemble the axle now or do I really need to get to 10 turns like I did before? How can I check if the nut is loose or too tight?

GTyankee 03-31-2012 07:37 PM

I hate to say it, but there is a possibility that you ruined the crush sleeve
Nut Pinion-Minimum 210 ft. lbs. (285 Nm)

this is a video about doing rear ends, although it is not a chrysler 9.25 in the film, they do cover it enough to give you an idea of how it all goes together
http://www.youtube.com/watch?v=dAqAq...eature=related

ramram 03-31-2012 09:36 PM

I dont understand how it was so different. could it be because I used the same axle nut

GTyankee 03-31-2012 09:46 PM

I know that when the pinion seal is replaced
many people get a new nut, maybe the threads stretch, like on head bolts ???

ramram 04-01-2012 01:03 AM

can I just take out the front bearing to remove the old crush sleeve then stick a new one in?

chefred112 05-22-2012 06:17 PM

it's more to it than that..you have to remove the carrier, then, with nut removed you have to press (hammer out) out the pinion because the crush sleeve sits between the bearings.. what i would do first is remove the carrier, put an inch pound tq wrench on the nut and see what the preload is (it shouldn't just turn freely)...it should be around 25" pounds tq to turn it..

chefred112 05-22-2012 06:18 PM

Quote:

Originally Posted by ramram (Post 764690)
can I just take out the front bearing to remove the old crush sleeve then stick a new one in?

yes, if you can take out front bearing, the crush sleeve is right there..

chefred112 05-22-2012 06:27 PM

here is what my old pinion looks like with all the components (9.25 - 4.56 gears)

http://i1127.photobucket.com/albums/...d/IMG_2727.jpg


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