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2003 DHS
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50 Posts
Discussion Starter #1
I appear to have a bad axle seal. I am leaking fluid on the drivers side where the axle enters what I think is the transmission case. I have not pulled the wheel to look closer yet since I don't know if this is likely something I can handle myself. Is the a common failure on a 2003 DHS and something a shade tree mechanic can fix? Or is this something I should not even attempt to handle and take it to a dealer.
 

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Master of the Dark Art of Diagnostics
2003 DHS - two-2002 DHS, 2003 SLS, 1995 Sedan DeVille, 1989 Coupe DeVille
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19,275 Posts
I appear to have a bad axle seal. I am leaking fluid on the drivers side where the axle enters what I think is the transmission case. I have not pulled the wheel to look closer yet since I don't know if this is likely something I can handle myself. Is the a common failure on a 2003 DHS and something a shade tree mechanic can fix? Or is this something I should not even attempt to handle and take it to a dealer.
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check for a HowTo within the TechTips forum -
http://www.cadillacforums.com/forums/cadillac-tech-tips-how-fix/
 

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98 eldo/KD54 w/N37,T96,QA1,D55,DS3,U1Z. U3R next
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2,125 Posts
The third clutch housing is behind the axle seal. The axle rides on the bushing, you can remove the axle and check the end of the axle for scoring or wear. Usually to repair the bushing you'd have to disassemble the transmission. I believe a gentleman named Mike Lawson devised a repair with a redesigned tripot end.

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http://www.cadillacforums.com/forums/cadillac-deville-1985-2005-including-1985/399242-4t80e-fix-leaky-drivers-cv-shaft.html

If you want in depth information on this , visit my post 4t80e woes....
 

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Registered
2003 DHS
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50 Posts
Discussion Starter #6
The third clutch housing is behind the axle seal. The axle rides on the bushing, you can remove the axle and check the end of the axle for scoring or wear. Usually to repair the bushing you'd have to disassemble the transmission. I believe a gentleman named Mike Lawson devised a repair with a redesigned tripot end.

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http://www.cadillacforums.com/forums/cadillac-deville-1985-2005-including-1985/399242-4t80e-fix-leaky-drivers-cv-shaft.html

If you want in depth information on this , visit my post 4t80e woes....
Unfortunately it looks like Mike Lawson has departed this site and eBay. He has not posted since April, 14 and I cannot find his product anywhere, including eBay. Too bad.

But thanks for the link. I learned a lot; now I have to make a decision as to what to do next. My Cadillac dealer wanted $750 to replace a front spark coil, so I can only imagine their price to fix this.
 

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4,153 Posts
I believe there is also a website that sells the similar axle stabilizer bearing; although you'd have to find a shop to machine the axle tripod.
 

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Registered
2003 DHS
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50 Posts
Discussion Starter #9
I believe there is also a website that sells the similar axle stabilizer bearing; although you'd have to find a shop to machine the axle tripod.
Thank you. Some searching produced: http://www.fitzall.com/94125LB.php Click on "Support Information" and the next page has a link to the "Instruction Sheet". Now I just need to find a machine shop to do the milling and order up. Thanks.
 
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