Circle d 6L80E transmission 600hp upgrade

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09-09-2010, 03:48 PM

#11

Robert91RS

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Most of the folks I have spoken to are saying 550ish or less at the wheels is safe but the weight and power adders can affect that number.

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09-11-2010, 11:10 AM

#12

fredkj3

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if we were to destroy a 6l80e... will a 6l90e swap right in???

is it like a 4l60e and a 4l65e... just a lil better internals????

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09-13-2010, 08:21 PM

#13

Coban

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Quote:

Originally Posted by fredkj3

if we were to destroy a 6l80e... will a 6l90e swap right in???

is it like a 4l60e and a 4l65e... just a lil better internals????

It is stronger. More clutch discs per pack and widers gears make it a tad longer as well.

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09-13-2010, 08:38 PM

#14

fredkj3

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Quote:

Originally Posted by Coban

It is stronger. More clutch discs per pack and widers gears make it a tad longer as well.

did not answer my question

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09-13-2010, 09:36 PM

#15

skipperdaddy

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Kale iirc the 6l80 and 6l90 are two different transmissions... to my knowledge the 90 is not a reworked 80

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10-01-2010, 10:46 AM

#16

bdubb

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Says limited 6 month warranty at the bottom of the page. One of the main issues on the 6L80's is the tune. Get the tune off and you are asking for more problems. I don't blame them on their warranty position and even more so if they aren't the ones who tune it.