1980 - diff axle seals - dimensions?
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Joined: Oct 2015
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1980 - diff axle seals - dimensions?
Hi,
my 1980 C3 has serious leaks on both diff axle seals.
I have tried to find the right replacement axle seals and found some online but with different dimensions, although claimed to be for 1980.
i.e.:
Willcox - has it declared for 1980-82 with WC Part Number: NAT470672 (housing bore 2.25"). But on ebay some vendors declare the same part number as NO fit for the 80-82 C3. Also at Willcox there is Alt Number: SKF 13988, which is 2.26" o.d..
At Summit there is YMS473227, declared for 80 C3, but 2.13" o.d..
At the other vendors (ZIP, Eckler, CA,...) there are no dimensions mentioned at all....
Which one is the correct one?
Another question, since the axle seals will have to be replaced, this would be a chance to replace also the other parts (there are different rebuild kits)? Or rather "don´t touch the running system"?
This is a street car with ~63k miles, newly refreshed 383, TH350C
I am from Europe and purchasing something which does not fit is costly.
Thanks,
Corto
my 1980 C3 has serious leaks on both diff axle seals.
I have tried to find the right replacement axle seals and found some online but with different dimensions, although claimed to be for 1980.
i.e.:
Willcox - has it declared for 1980-82 with WC Part Number: NAT470672 (housing bore 2.25"). But on ebay some vendors declare the same part number as NO fit for the 80-82 C3. Also at Willcox there is Alt Number: SKF 13988, which is 2.26" o.d..
At Summit there is YMS473227, declared for 80 C3, but 2.13" o.d..
At the other vendors (ZIP, Eckler, CA,...) there are no dimensions mentioned at all....
Which one is the correct one?
Another question, since the axle seals will have to be replaced, this would be a chance to replace also the other parts (there are different rebuild kits)? Or rather "don´t touch the running system"?
This is a street car with ~63k miles, newly refreshed 383, TH350C
I am from Europe and purchasing something which does not fit is costly.
Thanks,
Corto
Le Mans Master
Joined: Oct 2000
Posts: 6,362
Likes: 30
From: Oak Harbor WA
Not sure this will help too much but there might be two different part numbers because with the 80-82 rear diff there were two options, one for the 4spd cars and then the autos.
I know that matters for the u-joints but not sure that it matters for the yoke/stub axles which could then require a different seal, I don't suspect that is correct.
I would see if Ernie from Wilcox can shed some light on this for you. He is pretty active on the forum so give it some time if you can. This forum will get it sorted for you.
Just know that you are looking for the Dana44 rear end seals, but just for the 80-82 Corvette. There are other Dana44 rears in the world.....
I know that matters for the u-joints but not sure that it matters for the yoke/stub axles which could then require a different seal, I don't suspect that is correct.
I would see if Ernie from Wilcox can shed some light on this for you. He is pretty active on the forum so give it some time if you can. This forum will get it sorted for you.
Just know that you are looking for the Dana44 rear end seals, but just for the 80-82 Corvette. There are other Dana44 rears in the world.....
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Joined: Sep 2001
Posts: 3,665
Likes: 341
Hi,
my 1980 C3 has serious leaks on both diff axle seals.
I have tried to find the right replacement axle seals and found some online but with different dimensions, although claimed to be for 1980.
i.e.:
Willcox - has it declared for 1980-82 with WC Part Number: NAT470672 (housing bore 2.25"). But on ebay some vendors declare the same part number as NO fit for the 80-82 C3. Also at Willcox there is Alt Number: SKF 13988, which is 2.26" o.d..
At Summit there is YMS473227, declared for 80 C3, but 2.13" o.d..
At the other vendors (ZIP, Eckler, CA,...) there are no dimensions mentioned at all....
Which one is the correct one?
Another question, since the axle seals will have to be replaced, this would be a chance to replace also the other parts (there are different rebuild kits)? Or rather "don´t touch the running system"?
This is a street car with ~63k miles, newly refreshed 383, TH350C
I am from Europe and purchasing something which does not fit is costly.
Thanks,
Corto
my 1980 C3 has serious leaks on both diff axle seals.
I have tried to find the right replacement axle seals and found some online but with different dimensions, although claimed to be for 1980.
i.e.:
Willcox - has it declared for 1980-82 with WC Part Number: NAT470672 (housing bore 2.25"). But on ebay some vendors declare the same part number as NO fit for the 80-82 C3. Also at Willcox there is Alt Number: SKF 13988, which is 2.26" o.d..
At Summit there is YMS473227, declared for 80 C3, but 2.13" o.d..
At the other vendors (ZIP, Eckler, CA,...) there are no dimensions mentioned at all....
Which one is the correct one?
Another question, since the axle seals will have to be replaced, this would be a chance to replace also the other parts (there are different rebuild kits)? Or rather "don´t touch the running system"?
This is a street car with ~63k miles, newly refreshed 383, TH350C
I am from Europe and purchasing something which does not fit is costly.
Thanks,
Corto
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Joined: Oct 2015
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