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 Re: Well the rear pinion seal finally went all the way today. Any pointers to ease the job?
[Re: LeeForget]
#1028795
05/20/11 08:18 PM
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Joined: Jan 2010
Posts: 81
Getting the Wheeling Fever
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That's what the factory manual says - it all comes down to bearing preload - you have to use your best judgement and check it at different torques...ESPECIALLY, since you're retorquing an old bearing...
96 F250 4x4 Powerstroke
92 F150 4x4 Cummins 4BT Turbodiesel
90 Mitsubishi Mighty Max 4x4 3.0
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Re: Well the rear pinion seal finally went all the way today. Any pointers to ease the job?
[Re: mineitnow]
#1028796
05/20/11 08:49 PM
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Joined: Feb 2000
Posts: 3,269
Roll Me Over
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^yes^ You will have to make a jugement call. Because the in order to to really check the pre-load of the pinion bearing you have to remove the ring gear and check the turning force of the pinion gear with a torque wrench that measures inch pounds. So unless you tear it all the way down, you'll have to SWAG it.
99 Gen 2.5, fixing blown head gasket
89 SWB- 33's, ARB Front locker, SR rear locker/axle, SR F brakes, winch, WST Offroad Armor all Around, 2.85 Aussie T-case Gears (SOLD)
Sold: (2) 95 SR's, 86 SWB, 90LWB, 91 LWB
-Can Change a timing belt in my sleep..
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Re: Well the rear pinion seal finally went all the way today. Any pointers to ease the job?
[Re: justice]
#1028797
05/20/11 10:11 PM
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Joined: Nov 2010
Posts: 70
Getting the Wheeling Fever
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ill just set my toque wrench to max (150) and set it to that. This is a rig that gets driven MAYBE once a month, and its in the mud.
~88 Raider 2.6L 5 speed ~35"x14.5"r15 ~SOA(Spring Over Axle) ~TT(Torsion Twist) ~SBL(Sloped body lift) 
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Re: Well the rear pinion seal finally went all the way today. Any pointers to ease the job?
[Re: justice]
#1028798
05/20/11 10:44 PM
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Joined: Jan 2010
Posts: 81
Getting the Wheeling Fever
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^yes^ You will have to make a jugement call. Because the in order to to really check the pre-load of the pinion bearing you have to remove the ring gear and check the turning force of the pinion gear with a torque wrench that measures inch pounds. So unless you tear it all the way down, you'll have to SWAG it. Agreed. Kind of like tightening that front spindle nut - play it by feel and it usually turns out fine... <img src="/forums/images/graemlins/cheers.gif" alt="" />
96 F250 4x4 Powerstroke
92 F150 4x4 Cummins 4BT Turbodiesel
90 Mitsubishi Mighty Max 4x4 3.0
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Re: Well the rear pinion seal finally went all the way today. Any pointers to ease the job?
[Re: mineitnow]
#1028799
05/21/11 12:07 AM
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Joined: Sep 2001
Posts: 8,557
Forum Moderator
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The main thing is to pay attention to the torque when putting the yoke back on - that bearing is preloaded so a wrong torque could cause premature bearing failure. Also, if torqued way too tight or way too loose, it will affect how the teeth mesh on the ring gear and cause all kinds of problems in the long run (and noise in the short run).
Over torquing it will not change the gear set up. It will only screw up the pre-load on the pinion bearings. a Trick you can use on this type of differentials is to pull the crush sleeve out, and put it on a pipe, and hammer the "bend" out of it. Then when you re-set it back up, you can "re crush" it. This is good when you can't get a new crush sleeve, or just wanna squeeze a few more miles out of an old diff. I would never re-use one on new gears, or bearings. The purpose of the crush sleeve is to hold the pinion bearings in exactly the preload spec that you set them in. As said before... you got to do it by feel, and it is NOT easy to do. If you leave the case in, and get on the pinion nut with a bigass breaker bar, you can tighten it up real easy, but then you have to pull the case back out to test the preload of the pinion..... as said before... set up like a wheel bearing on a front axle, or a trailer spindle.
87 Raider 4D56td v5MT1
31's..Basically Stock
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Re: Well the rear pinion seal finally went all the way today. Any pointers to ease the job?
[Re: LandRaider]
#1028800
05/21/11 08:00 PM
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Joined: Jan 2010
Posts: 81
Getting the Wheeling Fever
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Yes, I didn't say that right. Overtorquing will not affect the mesh, but it will affect the bearing life. Undertorquing will affect the mesh.
96 F250 4x4 Powerstroke
92 F150 4x4 Cummins 4BT Turbodiesel
90 Mitsubishi Mighty Max 4x4 3.0
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Re: Well the rear pinion seal finally went all the way today. Any pointers to ease the job?
[Re: mineitnow]
#1028801
05/22/11 01:48 PM
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Joined: Aug 2009
Posts: 989
Rock Warrior
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Sorry to have upset anyone ..I changed my post ...
Sorry if I'm stepping on toes here...
David
Hazardous Toys inc
Last edited by haztoys; 05/22/11 03:07 PM.
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Re: Well the rear pinion seal finally went all the way today. Any pointers to ease the job?
[Re: haztoys]
#1028802
05/22/11 02:43 PM
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Joined: Sep 2004
Posts: 4,479
Roll Me Over
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Instead of just calling someone out for possibly being wrong, why don't you provide the information you consider accurate for others to take with a grain of salt. Most of the info here is provided via experience and trial and error, so everything you read here should always be considered a DIY tip and not something a shop should do. Just calling someone out kinda makes you look like a dick. <img src="/forums/images/graemlins/ignore.gif" alt="" />
Richard E 1989 Montero - Stock-ish 1989 V6 Auto Raider - 5.3 Vortech Swap. 1987 Mitsubishi Starion 2.6t, soon to be 3.5 1983 Honda XL600R 
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Re: Well the rear pinion seal finally went all the way today. Any pointers to ease the job?
[Re: StockRaider]
#1028803
05/22/11 04:16 PM
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Joined: Feb 2000
Posts: 3,269
Roll Me Over
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Who got called out? I missed it..I'm here to learn too so if you see something wrong let us know. <img src="/forums/images/graemlins/cheers.gif" alt="" /> Thanks
99 Gen 2.5, fixing blown head gasket
89 SWB- 33's, ARB Front locker, SR rear locker/axle, SR F brakes, winch, WST Offroad Armor all Around, 2.85 Aussie T-case Gears (SOLD)
Sold: (2) 95 SR's, 86 SWB, 90LWB, 91 LWB
-Can Change a timing belt in my sleep..
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Re: Well the rear pinion seal finally went all the way today. Any pointers to ease the job?
[Re: justice]
#1028804
05/22/11 05:22 PM
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Joined: Jan 2010
Posts: 81
Getting the Wheeling Fever
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96 F250 4x4 Powerstroke
92 F150 4x4 Cummins 4BT Turbodiesel
90 Mitsubishi Mighty Max 4x4 3.0
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