Manual Transmission T56 | T5 | MN12 | Clutches | Hydraulics | Shifters

dumb question...autozone only has automatic trans oil?

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Old 08-03-2009, 11:05 AM
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Default dumb question...autozone only has automatic trans oil?

Every Dexron III trans oil said it was specifically for an automatic. Is this what I use in my T-56?

Also, the trans grinds and rejects the shift into 3rd gear about once per month or so. Otherwise it shifts fine. It's annoying because you never know when it's going to happen and you're constantly bracing for it every shift into 3rd. What could cause this and how much would it cost to fix?

Thanks!
Old 08-03-2009, 11:23 AM
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Yes, Dextron / Mercon III non synthetic fluid is perfectly fine for the T56.
Old 08-03-2009, 11:28 AM
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Originally Posted by thesource
Yes, Dextron / Mercon III non synthetic fluid is perfectly fine for the T56.

Thanks! Any idea on the occasional 3rd gear grind?
Old 08-03-2009, 01:45 PM
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Could be a syncro on its way out.
Old 08-03-2009, 01:48 PM
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I think the third issue is a misaligned/bent shift fork. There was a TSB out a long while ago. Mine will sometimes pop out of third if I don't gas it after shifting to third. I was going to get a rebuild at 6-speed inc, but they went under. I'm shopping around but am in no big hurry.




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