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9L80E to old gen LS?

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Old Oct 10, 2022 | 03:51 PM
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Default 9L80E to old gen LS?

So, I'd need a custom cross member. But would a gen 3 ls and converter bolt up to the new 10 speed transmissions?

What would I need to make it shift? How would I adapt the ecu? Has this been done yet?
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Old Oct 10, 2022 | 04:28 PM
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Never heard of a GM 9L80E transmission.

There is a 8L90E transmission that's been used in Corvette's, Camaro's and trucks. It uses a lot of CAN (car area network) data to function and requires many electronic control modules and sensors to function properly. Uses a different torque converter than the 4L60E. Won't work with a Gen III PCM from what I've read. That may have changed in last while etc.

Speartech has control boxes, software, transmission, engines etc to do swap.


Last edited by 99 Black Bird T/A; Oct 11, 2022 at 05:05 PM.
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