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Re: Pinion Nut Backed Off
[Re: GTX MATT]
#1529853
11/08/13 11:53 AM
11/08/13 11:53 AM
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Joined: Dec 2011
Posts: 257
Way North Idaho
1KoolBee
enthusiast
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enthusiast
Joined: Dec 2011
Posts: 257
Way North Idaho
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The third member is out of the car with the caps off. What is entailed with setting the pinion load with the spacer? I would really like to have this in this weekend if I can.
GTX - Cab is right on the money, glad to see you are doing it right. The "crank it down" approach will get you home in a pinch, but no amount of red Loctite in the world will stop the crush sleeve from losing tension & the rear eventually failing. I once had the pleasure of crossing the centerline into oncoming traffic at about 55 mph in a friends car due to a locked rear-end, no fun. At least we were unscathed and perfectly parked at the opposite curb when the smoke cleared. Good luck!
'68 Bee 383/TF/Factory Air...high school sweetheart
'67 GTX Clone project,500 six pack,Hemi4-speed,Dana
05 Dodge Viper, 505 V-10, 6-speed Tremec
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Re: Pinion Nut Backed Off
[Re: Cab_Burge]
#1529856
11/08/13 01:49 PM
11/08/13 01:49 PM
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Joined: Feb 2005
Posts: 28,312
Cincinnati, Ohio
Challenger 1
Too Many Posts
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Too Many Posts
Joined: Feb 2005
Posts: 28,312
Cincinnati, Ohio
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Quote:
Quote:
I had that happen to me in Florida some years back during the winter series events ... just tightened her back up .... no problemO !
 Dude, are you serious or just trying to get him killed  Once the crush sleeve has collapse enough to allow the pinion nut to back off that sleeve is ruined  OP, the 489 3rd members use the crush sleeves to set the pinion bearing preload, not to set the pinion depth  You should pull the third member out so you can properly check it when done, wether(SP?) you use a new crush sleeve or a new spacer, you need to make sure that the pinion depth and the pinion bearing preloads are both set up properly   One easy way to tell on a posi unit if it was ever in a 489 third member that was raced with decent power and traction is to look for the pinion teeth marks on the posi carrier to see if the crush sleeve collapse allowing the pinion gear to rotate back into the posi unit when backing up, if they(pinion gear) do back out they usually will lock up right away That is the main reason I recommend to drag racers to not use them(489 third members) with stock type crush sleeves
If you haven't noticed, he doesn't know jack and it shows in his posts. 
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Re: Pinion Nut Backed Off
[Re: IcorkSOAK]
#1529858
11/08/13 02:39 PM
11/08/13 02:39 PM
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Joined: Feb 2005
Posts: 28,312
Cincinnati, Ohio
Challenger 1
Too Many Posts
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Too Many Posts
Joined: Feb 2005
Posts: 28,312
Cincinnati, Ohio
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Quote:
Chilly 1 ...... You contribute Nothing to this topic except your buffoonery ....take a hike.
Like you have? Calling people names is all you seem to do. Too bad for you.
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Re: Pinion Nut Backed Off
[Re: Challenger 1]
#1529859
11/08/13 03:30 PM
11/08/13 03:30 PM
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Joined: Jul 2008
Posts: 30,632
Florida STAYcation
IcorkSOAK
Financed his waterbed
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Financed his waterbed
Joined: Jul 2008
Posts: 30,632
Florida STAYcation
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Quote:
Quote:
Chilly 1 ...... You contribute Nothing to this topic except your buffoonery ....take a hike.
Like you have? Calling people names is all you seem to do. Too bad for you.
Toooo bad for you ....coming on a topic that you know NOTHING about and spouting your foolishness. I had this pinion-nut-back-off happen to me .... and I put another 3k miles on it ...at least.
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Re: Pinion Nut Backed Off
[Re: IcorkSOAK]
#1529860
11/08/13 03:42 PM
11/08/13 03:42 PM
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Joined: Feb 2005
Posts: 28,312
Cincinnati, Ohio
Challenger 1
Too Many Posts
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Too Many Posts
Joined: Feb 2005
Posts: 28,312
Cincinnati, Ohio
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Quote:
Quote:
Quote:
Chilly 1 ...... You contribute Nothing to this topic except your buffoonery ....take a hike.
Like you have? Calling people names is all you seem to do. Too bad for you.
Toooo bad for you ....coming on a topic that you know NOTHING about and spouting your foolishness. I had this pinion-nut-back-off happen to me .... and I put another 3k miles on it ...at least.
How many R&P have you replaced?
I have done plenty, 8 3/4 many many 9" and even big truck gears since a long time ago.
I have forgotten more than you have ever known.
You are the most irritating poster on this site by far, wish you would have stayed banned. 
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Re: Pinion Nut Backed Off
[Re: JohnRR]
#1529864
11/08/13 06:17 PM
11/08/13 06:17 PM
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Joined: Jul 2008
Posts: 30,632
Florida STAYcation
IcorkSOAK
Financed his waterbed
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Financed his waterbed
Joined: Jul 2008
Posts: 30,632
Florida STAYcation
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Quote:
Gary this works wonders ...
Quote:
*** You are ignoring this user ***
Ahhhh RoadToad .... Still aligning clutch plates with a tiny screwdriver ? ... 
... and the same goes for you ... You leave me alone ... I won't say a thing to you to make you  to your mommy ...
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Re: Pinion Nut Backed Off
[Re: JohnRR]
#1529865
11/08/13 07:47 PM
11/08/13 07:47 PM
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Joined: May 2003
Posts: 1,751
Graham, WA
Polarapete
top fuel
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top fuel
Joined: May 2003
Posts: 1,751
Graham, WA
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Just like watching TV with the sound on "Mute"
1986 Dodge Ramcharger 440 2wd, Bracket Racer Under Construction
1998 Ram 2500 QuadCab, new daily driver.
2008 Honda Element
2014 Carry-On 7x14 Cargo Trailer
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Re: Pinion Nut Backed Off
[Re: Polarapete]
#1529866
11/09/13 02:50 PM
11/09/13 02:50 PM
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Joined: Jan 2003
Posts: 10,983
North Dakota
6PakBee
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 10,983
North Dakota
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What I see missing in this whole discussion is that there are hundreds of thousands of differentials using crush sleeves that work perfectly. In this case is anyone sure that the preload was set correctly to start with? If not, that could be part of this particular problem. Obviously if the differential is apart, now is the time to fix it the right way. But if I was in Last Chance, Nevada and this happened, I'd run the nut back on until there was zero end play on the pinion, give it another flat, count the turns coming off, replace with Loctite and go until I could do it correctly. 
"We live in a time when intelligent people are being silenced so that stupid people won't be offended".
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Re: Pinion Nut Backed Off
[Re: 6PakBee]
#1529867
11/09/13 09:12 PM
11/09/13 09:12 PM
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Joined: May 2003
Posts: 1,751
Graham, WA
Polarapete
top fuel
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top fuel
Joined: May 2003
Posts: 1,751
Graham, WA
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 I would do the same, but only to get me home or to a shop that could properly repair it. Once when I used to drive the race car to the track (40 miles) I broke the extension housing on the 727!! We overfilled it with ATF and drove it home @ 25mph leaking all the way. It was late at night, I had no trailer and no choice. Gave the car an ATF bath. After I got a new extension housing, shortened the driveshaft and a trailer never had that problem again.
1986 Dodge Ramcharger 440 2wd, Bracket Racer Under Construction
1998 Ram 2500 QuadCab, new daily driver.
2008 Honda Element
2014 Carry-On 7x14 Cargo Trailer
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Re: Pinion Nut Backed Off
[Re: Polarapete]
#1529868
11/09/13 09:33 PM
11/09/13 09:33 PM
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Joined: Nov 2007
Posts: 21,927
Kirkland, Washington
Pacnorthcuda
Too Many Posts
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Too Many Posts
Joined: Nov 2007
Posts: 21,927
Kirkland, Washington
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Quote:
I would do the same, but only to get me home or to a shop that could properly repair it.
Once when I used to drive the race car to the track (40 miles) I broke the extension housing on the 727!! We overfilled it with ATF and drove it home @ 25mph leaking all the way. It was late at night, I had no trailer and no choice. Gave the car an ATF bath. After I got a new extension housing, shortened the driveshaft and a trailer never had that problem again.
And the oil trail from SIR to Kirkland still remains! 
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Re: Pinion Nut Backed Off
[Re: Polarapete]
#1529870
11/10/13 02:58 PM
11/10/13 02:58 PM
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Joined: Feb 2003
Posts: 1,238
Nevada
dezduster
pro stock
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pro stock
Joined: Feb 2003
Posts: 1,238
Nevada
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For the record I LIKE THE SHIM METHOD! NOT THE CRUSH SLEEVES! I HAVE RETIGHTENED CRUSH SLEEVES WITH NEW PINION NUTS WITH NO PROBLEMS. I DONT RECOMMEND IT THOUGH. When you are on the throttle the pinion is being held forward by? The pinion nut then washer, which is holding the yoke to the bearing,the bearing against the race, the race against the housing... http://www.4x4wire.com/toyota/tech/crush_sleeve/gear_layout.jpgI have found the pinion nut loosening is primarily due to bearing wear, heat cycling and overloading AND reverse burnouts which distorts housing or pinion momentarily and working the crush sleeve. At this point things go wrong quickly, not instantly. The pinion nut is the key IMO. I use a old nut to get my pinion shim thickness selected and then put the new nut on with red locktight green has worked well for me also.
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