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Over Crushed Crush Sleeve

katugly

1/2 ton status
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May 18, 2009
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Location
Goddard, Kansas
So i was replacing the pinion seal on my 10 bolt today and over crushed the sleeve. In theory if I get a new sleeve and go back to my original thread count and marks will my preload be correct?

Second question I have never tore into any diffs before and am unsure about the carrier. If i just pull it out and make sure to get all the shims and such back in the correct spot I don't need to re setup the gears correct? If I don't have a place to start with the crush sleeve what is the correct inch pounds for the preload on the pinion? I'm really out of my element with axle ****e.
 
gotta use a torque wrench on the pinion nut. i dont recall, but i seem to remember the last on ei did being at 25lbsft.

as for the rest... ill let more experieneced guys answer.
 
crush sleave easy. pull seal on pinion. pull bearing. pull sleave.

reseting not so easy. need spec turrning resitance with used bearings. its measured in inch lbs.

also the trick is take a hammer & chissle. mark nut and end of pinion each before any work done. then pull apart. swap seal. reinstall nutto orignal marks made then go past just the width of the chissle mark and your done. but you didnt know this and cant try it now. :doah:old gm tech told me this works like a champ. :waytogo: havent had one go bad yet.

you might wana drop over to pirate and read the tech section writeups on gear install to know how preload/crush is determened. other will prob give you helpfull info here tho. :waytogo:

i have only setup 1 set of ring and pinions. so yes I AM A NOOB at this . :haha:
 
Think i found my issue... I left the washer out :doah: Hopefully i didn't molest any thing to badly.
 
yup was laying in the parts washer when i cleaned off the yoke i forgot it. I was wondering how i was able to crush it 2 threads past the mark so easy. With the washer in there it was all my little 6 gallon pancake with a IR 1/2 gun could do to get it back to my chisel mark. Holy hell no way some one mistakenly crushes that bitch. Went out for a spin in the snow around a school they are building out here and it was silent. PHEW!
 
i dont know. :doah:

the non 14ff stuff crushes a LOT easyer than the 14ff one. and with a gun its easy to go past.

if me i would not chance it. i would do a new one and reset.
 
Once they start crushing they are really easy to crush after that. The pinion bearing preload increases VERY quickly, it may increase from 5 to 100 in lbs in 1/32 (maybe 1/16, I'm giving a ballpark) of a revolution.

Make sure you staked that pinion nut, used nuts don't like to stay tight.
 
Definately install a NEW crush sleeve and start over. The proper spec for pinion preload on a 10 bolt is 5-15 INCH POUNDS with a used bearing or 20-25 INCH POUNDS with a new bearing. You will need a dial type torque wrench for this procedure.
 
And of course to make your life worse, the pinion preload is measured with the carrier removed.

But guys, are you sure there is a problem? He says that he's back to his original marking. The only thing that sounds weird here is that he had to hammer it with the impact for some reason.
 
And of course to make your life worse, the pinion preload is measured with the carrier removed.

But guys, are you sure there is a problem? He says that he's back to his original marking. The only thing that sounds weird here is that he had to hammer it with the impact for some reason.

If he left out the pinion nut washer and tightened the pinion nut he DID over crush the sleeve and even though he removed the nut and put the washer back in and is now back to his original mark there is now nothing supporting between the 2 bearings and IT WILL fail.
 
I had to risk it I had to get out of my neighbor hood this morning. Ill fix it correctly this weekend.
 
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