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Old 12-15-2014, 12:47 AM   #1
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Ls1 or lt1 t56 ID?

Looking for a t56 and the guy isn't sure if he has a ls1 t56 or lt1 t56. I asked him to measure the input shaft. Is this ls1 t56 or lt1 t56?
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Old 12-15-2014, 01:16 AM   #2
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Ls1 or lt1 t56 ID?

I have to say I'm curious about this now as well. I just tried looking around and couldn't find any measurements. But I'm drunk sooo

Is the bell housing pattern different?

Is the spline count different?
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Old 12-15-2014, 11:38 AM   #3
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Doesn't look like an LS1 T-56, going off these measurements:
t56 ls1 input shaft dimensions - LS1TECH
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Old 12-15-2014, 03:02 PM   #4
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Those measurements are from the gear face with the shaft removed from the tranny, not from the bell housing with installed as in the picture.
That said, doesn't the LS1 version have a different spline count?
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Old 12-15-2014, 03:40 PM   #5
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http://ls1tech.com/forums/manual-tra...6-ls1-t56.html

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Old 12-15-2014, 09:19 PM   #6
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Yep, from the plate design it looks like an LT1 T-56 that Meatwad posted.
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Old 12-15-2014, 09:23 PM   #7
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Quote:
Originally Posted by ZexGX View Post
Yep, from the plate design it looks like an LT1 T-56 that Meatwad posted.

That's what I thought after looking. Was waiting for someone else to confirm
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