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post #1 of 4 (permalink) Old 03-31-08, 04:01 PM Thread Starter
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Lucas Transmission Fix?

Just wanted to know what you all thought about the Lucas Transmission Fix for a hard shifting transmission. I just got it rebuilt and am wondring if it's a sticking valve or something. What are your thoughts? Thanks

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post #2 of 4 (permalink) Old 04-01-08, 05:47 AM
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Re: Lucas Transmission Fix?

Those products work by using a "seal sweller" additive. If you've just rebuild your transmission, you could have a clutch pack/band clearance off a bit or a worn boost valve, etc. Lucas isn't going to fix those kinds of problems.

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post #3 of 4 (permalink) Old 04-24-08, 09:40 PM
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Re: Lucas Transmission Fix?

I have used it on very worn transmissions to good effect. Miraculous sometimes - but don't think it would be any use for a brand new rebuild.
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post #4 of 4 (permalink) Old 04-26-08, 08:15 AM
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Re: Lucas Transmission Fix?

I think the additives that are meant to 'fix leaks' are a waste of money. Lucas is a reputible name, but keep in mind they have an extensive product line. Most leaks can only be fixed one way - tear down and rebuild. I tried one 'fix' additive once, can't recall what it was on. But I was better off putting that $12 towards fixing the repair properly instead of throwing my money away.

Another thought is changing the fluid to a synthetic which might help smoothen the shifts. Amsoil makes a good synthetic ATF that's reasonably priced.

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