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1968 rear main seal

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Old March 4th, 2023, 07:07 AM
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blp
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1968 rear main seal

How much is too much to pay for rear seal replacement 1968 cutlass w/ 350..... as always I'm always grateful for your time
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Old March 4th, 2023, 07:29 AM
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Anything more than about $50 is highway robbery.

Oh but to actually replace it you really need to pull the engine and pull the pan off. So adding labor hours, I'd expect a grand or two from a shop.
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Old March 4th, 2023, 08:10 AM
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^^^^ THIS the part is cheap, but it's not exactly a small job.
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Old March 4th, 2023, 09:06 AM
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Rope rear main seal removal is no small task. Even out of car is tough, done quite a few on SB Olds. I saw an in truck done on a 292 Ferd in the shop I worked, which ironically takes the same seal. There was a ridiculous amount of swearing involved and lots of work arounds. Make sure they don't go back to the rope seal and use a neoprene alternative.
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Old March 4th, 2023, 09:25 AM
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If you can find a shop to do the seal in the car I'd figure about 8 hours labor plus $300 in miscellaneous parts e.g., seal, oil and filter, gaskets and motor mounts.

How many miles and has the timing chain/gear set been replaced? If it has over 75k and the chain is original it would probably be best to do a compression test to evaluate the overall engine condition, pull the engine, replace the seal with a neoprene version and replace the chain gear/set. This can snowball into $$$ in a hurry.
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Old March 4th, 2023, 10:59 AM
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I have the original OEM main rope seal (1971 CS 350cid). Depending on size of leak this may work for you. I get maybe 6-7 drops per week (120K miles on the odometer).

NOTE: No assembly required, easy to install, saves $$, instructions optional.


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Old March 4th, 2023, 11:59 AM
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thank you for the time... I was quoted 1,500k which may not be such a bad start on this....
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Old March 4th, 2023, 12:01 PM
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thank you for the time... I was quoted 1,500k which may not be such a bad start on this.... I read about the 292 being the same seal..crazy
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Old March 4th, 2023, 12:03 PM
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timing chain replaced 15k miles ago....but yes a compression test is a great idea as well as neoprene
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