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Rear bearing seals, still an issue [message #318024]

Fri, 26 May 2017 06:19

RF_Burns

Messages: 2277
Registered: June 2008
Location: S. Ontario, Canada

Karma:

Senior Member

Its been about 5 years and over 20K miles since the rear bearings were redone so its time to do them again.

I bought some new bearings and seals from a former GMCer a couple of years ago. The seals are 8974S in a National box. I tried the 1/4" clearance trick and these fail. From my understanding, the seal will sit too close to the bearing and the rubber will touch the bearing causing it to get damaged. Then the grease can leak out and toast the bearing.

Has anyone come up with a consistent good part number? or a work-around for a seals that fail the 1/4" test?

Thanks

Bruce Hislop
ON Canada
77PB, 455 Dick P. rebuilt, DynamicEFI EBL EFI & ESC.
1 ton front end
http://www.gmcmhphotos.com/photos/showphoto.php?photo=29001
My Staff says I never listen to them, or something like that

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[Message index]

		Rear bearing seals, still an issue By: RF_Burns on Fri, 26 May 2017 06:19
		Re: Rear bearing seals, still an issue By: wally on Fri, 26 May 2017 08:05
		Re: [GMCnet] Rear bearing seals, still an issue By: Mr ERFisher on Fri, 26 May 2017 08:27
		Re: [GMCnet] Rear bearing seals, still an issue By: Bruce Hart on Fri, 26 May 2017 13:16
		Re: [GMCnet] Rear bearing seals, still an issue By: powerjon on Fri, 26 May 2017 08:02
		Re: Rear bearing seals, still an issue By: RF_Burns on Fri, 26 May 2017 15:54
		Re: Rear bearing seals, still an issue By: RF_Burns on Sat, 27 May 2017 08:24

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