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#1 |
70 C/10-Work in progress
Join Date: Aug 2005
Location: Kansas
Posts: 601
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Rear axle seals
I rebuilt the rearend for my 70 1/2 ton awhile back and was cleaning a few things up the other day when I noticed that both rear axle seals were/had been dripping-oil spots right below them on the concrete. The pinion seal also has this too. Is there something special that needs to be done to prevent these from leaking?-it's not bad but I want to fix it before I go any further.
any help is greatly appreciated.
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In the garage 1999 Dodge Dakota Sport-Daily Driver 1972 Chevy K/5 CST AC/PS/PB/4x4/Tow Hooks/Tilt 1970 Chevy C/10-Current project |
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#2 |
Senior Member
![]() Join Date: Sep 2005
Location: Lewisville, Nc
Posts: 10,234
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Re: Rear axle seals
well make sure the the axles aren't wore to far so that the seals aren't doing there jobs other then that i dont know make a heavey duty seal?
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David fuller Ase Certified Mechanic Click here to help support our board!! 1971 Chevy c-10 under going a 4.8l LSx swap Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=421305 2007 Honda Accord my daily 145kmiles 2002 Honda Accord 4 door With 330k(sisters car) 2005 toyota Avalon 228k( brothers car) 2002 Sububran 5.3 245k 2000 Tahoe 5.3l 378 General manager for Marco's Carwash & lube |
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#3 |
Senior Member
Join Date: Jul 2001
Location: Muskegon,MI,USA
Posts: 6,026
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Re: Rear axle seals
With all three seals leaking, my thought would be to make absolutely sure that the vent tube is not plugged before changing the seals. If the vent tube is plugged, pressure will build up in the axle housing forcing the oil out.
I am assuming that new seals were installed during the rebuild, if not new seals would be in order if the sealing surfaces are good. Jim
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1971 Shortbox step side 4x4, 350 sbc, 3:07 rear end 1965 Impala SS 400 sbc, Muncie rock crusher 1966 Impala SS 396 bbc, TH 400 1969 El Camino, 350 sbc, TH 350 1971 Snowplow built on a Blazer frame 1972 GMC Short bed, stepside, TH 400, 427 BBC |
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#4 |
Registered User
Join Date: Dec 1999
Location: Old Mission, MI, USA
Posts: 2,510
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Re: Rear axle seals
If there is a groove worn into the shaft/pinion where the seal rides, a new seal will leak. My guess would be that this is your problem on all three.
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Tim |
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#5 |
70 C/10-Work in progress
Join Date: Aug 2005
Location: Kansas
Posts: 601
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Re: Rear axle seals
thanks for the info everyone, I'm going to check it out later this week
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In the garage 1999 Dodge Dakota Sport-Daily Driver 1972 Chevy K/5 CST AC/PS/PB/4x4/Tow Hooks/Tilt 1970 Chevy C/10-Current project |
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#6 |
Registered User
Join Date: Jan 2007
Location: Puyallup, WA
Posts: 1,662
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Re: Rear axle seals
I found out my axle seals were shot when I suddenly lost 50% of my stopping power because the gear oil got into the brakes.
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72 C10 lwb fleetside -stock 350/350 combo |
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#7 |
Senior Member
Join Date: Aug 2005
Location: OKC, OK
Posts: 2,365
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Re: Rear axle seals
There is a axle shaft repair seal that is beefer than the original seal and moves the seal to a different point on the axle shaft so it is not riding in the groove. They are pricey but cheaper than a new axle. I think around $28 each
Mike
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Mike Redpath |
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#8 | |
~Rest In Peace~
Join Date: May 2005
Location: CALIFORNIA NOR CAL
Posts: 9,707
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Re: Rear axle seals
Quote:
show me a link to these parts please
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is it fast ? it has a lighting bolt donut? B___H please, I can remove 90% of your so called "beauty" with a kleenex |
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#9 | |
Senior Member
Join Date: Aug 2005
Location: OKC, OK
Posts: 2,365
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Re: Rear axle seals
Quote:
Mike
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Mike Redpath |
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#10 |
Senior Member
Join Date: Aug 2005
Location: OKC, OK
Posts: 2,365
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Re: Rear axle seals
What they do is combine the outer bearing with the seal. They have an o-ring on the perimeter and are a much better sealed outer roller bearing with a n intergal seal.
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Mike Redpath |
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#11 |
Registered User
Join Date: Jun 2006
Location: Alabama
Posts: 54
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Re: Rear axle seals
BCA part # s are RP5707, for certain rear ends, just tell the parts guy you need repair bearings for your axles,better luck if you go to a NAPA or other independent parts place,the guys there usually know what you are talking about! Bob
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