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Hi all, My rear main seal started leaking. What is the typical cost to have it replaced? As always, thank you for your help and time.
 

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I don’t have an estimate but mines leaking and for now I’m ignoring it. Gonna be expensive because the front diff is gonna be in the way. Have been running a bit of Lucas oil stop leak through and I’m gonna be done with that because it isn’t helping. If it’s just a drip and the level isn’t really dropping I wouldn’t stress too much! But yeah, not gonna be a cheap one
 

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The rear main seal is not nearly as common as the oil pan lip seal. Many of these are falsely diagnosed as rear main seal because the two are within inches of each other and neither is visible with the transmission installed. I would recommend oil pan gasket replacement first, followed by a thorough cleaning. Oil pan replacement is not cheap, but it is considerably less invasive than a rear main seal, and more likely to correct your leak
 

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The rear main seal is not nearly as common as the oil pan lip seal. Many of these are falsely diagnosed as rear main seal because the two are within inches of each other and neither is visible with the transmission installed. I would recommend oil pan gasket replacement first, followed by a thorough cleaning. Oil pan replacement is not cheap, but it is considerably less invasive than a rear main seal, and more likely to correct your leak
Thanks for that, I don’t have experience other than mine and what I’ve read and because I haven’t fixed my leak yet I’ve been assuming it was rear main seal. I did over fill the oil a bit once so from what I read I thought that was it. But good to know, maybe if I’m daring enough I’ll give a shot at replacing that oil pan gasket some time soon and see if you’re right!
 

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Cost will vary a little bit with drivetrain config I believe. It cost me $1500 to replace it at a dealership for my 2004 4x4 5 speed. Took them about 2 days to do. I was happy to finally get that leak taken care of, but now I've got a leak coming from my oil filter :mad:.
 
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