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Flexplate differences... 6L80 vs 4L60 trucks?

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Flexplate differences... 6L80 vs 4L60 trucks?

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Apr 18, 2019 | 03:14 PM

#1

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TECH Apprentice

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Flexplate differences... 6L80 vs 4L60 trucks?

I'm putting a 6L90 behind an LS3. I'll be using an LSA converter (with 3 bolts). Can I use a 4L60 flexplate off, say a 2003 Tahoe 5.3/4l60? I thought I read a post that said they were interchangeable. Reason I ask is I have a 4L60 flexplate kicking around that I'd love to use.

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Apr 19, 2019 | 09:48 PM

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L80 and L60 same. Not sure of L90, your post doesn’t match the title.

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Apr 20, 2019 | 03:09 AM

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The Scammer Hammer

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Yes it will work. As you said, 3 bolts though instead of 6 (I personally don't like that idea)

The one you can't use the 4L80 flexplate. It's not dished and wont fit the LSA converter.

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