I was reluctant to post this in fear of looking like an idiot. ran this by 2 friends that are good mechanics. me personally I'm far from a good mechanic I'm not afraid to tear into certain things though. last week when greasing noticed front yoke on power divider had play, so I took it apart, put loctite on nut, ran it down, new u joint called it a day. 100 miles up the road I have gear oil everywhere,seal went out. turn around, take a day to spend with family as I was frustrated at the whole deal. tear back into it, get seal out, to do this I took the cover with 6 bolts off to knock seal out from inside, kept track of shims, bolts in a box. 99.9% sure I didn't loose anything. seal is S13143 crosses to national 100495, parts house gives me a DTP2590 says it crosses to the national number, and it does look the same. put it back together, the yoke is now bottoming out on seal after running nut down. so tight I can't turn it at all. I'm stumped and don't know what to do. I'm questioning myself if I lost a spacer now between yoke and bearing. any help or a good diagram id truly appreciate it. I'm 100% stumped and feel like a true idiot.
SQ100 pinion seal and nut
Discussion in 'Trucks [ Eighteen Wheelers ]' started by PSM379, Aug 6, 2024.
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wore out and BoxCarKidd Thank this.
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Oxbow and Big Road Skateboard Thank this.
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Also, if you loosened the bolts of the cover, just a thread or so, then tighten the yoke, does anything change?Oxbow Thanks this. -
Page 100 of this PDF. I don't see a spacer.
BTW, you didn't get a new yoke did you?
https://www.nationalhdtruckparts.com/images/pdfs/HD_DIFFTRANS_002R.pdfOxbow Thanks this. -
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Sorry, I am just seeing this. I was studying some diagrams as well. Didn’t get a new yoke. I will try and upload some pictures. I’ve come to the theory it is the wrong seal, and the yoke is bottoming out on seal instead of the bearing. Upon further inspection the new seal is slightly thicker than old seal. Having issues with pictures down loading from iCloud at the moment.
Big Road Skateboard, Oxbow and wore out Thank this. -
Does the yoke have a wear ring on it?
PSM379, Oxbow and Big Road Skateboard Thank this. -
If so, the dust cover kinda looked like it was part of the seal, and could be left on by mistake.
Any possibility there @PSM379?PSM379, Oxbow and Star Rider Thank this. -
No wear ring on yoke.
no dust cover stuck to seal from what I can tell.
Thank you for the ideas though. Unfortunately
in these pictures you can see the new seal installed then the after picture where I took it back apart after a 5 mile or so ride.Oxbow and Big Road Skateboard Thank this.
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