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1997 4L80e to 2001 6.0l?

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Old 09-03-2008, 06:14 PM
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Default 1997 4L80e to 2001 6.0l?

This has probably been addressed before but I can't seem to find an answer through the search tab. Will an older 80e bolt to an iron 6.0l without any problems?

A local man has one for sale out of a 1997 Suburban for cheap and I need a core. I'm pretty sure that the bolt patterns are the same but I'm not 100% positive. Any unknown expenses or should I look for a slightly newer core?
Old 09-03-2008, 07:36 PM
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It will bolt up, the pattern might not be identical, but all but one or 2 holes will line up. It may be a perfect fit, I'm not 100% when they changed the bolt pattern. Does it have a bolt hole @ 12:00 on the bell housing? If so it will be an identical match.
Old 09-04-2008, 01:18 AM
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Ah ok. The lister didn't have any pictures of it so I'm not sure if it has the top bolt or not. Will this be a problem if it doesn't or should it still be a go?
Old 09-04-2008, 01:20 AM
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it will still bolt up.
Old 09-04-2008, 09:14 AM
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it will bolt up, you wont have a bolt at 2 o clock-the newer 4l80's have a bolt at 12 o clock-make sure your 6.0 has a flat flywheel and .400 spacer bet crank and flywheel



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