Quote:
Originally Posted by IOMike
Completely apples to oranges, but by 6l80 is holding 200hp more than my car made stock with no issues. I'm sure the 6l90 is better, but there was lots of extra room with the 6l80.
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Transmissions have never really been a weak point for GM. Save for a few torque converter issues on the A8. But for the most part they build these things with a lot of head room in terms of capacity limit.