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Built 6l80. Everything but billet planetary setup. Assembled by me. You can see on the extension housing where I welded reinforcement plates in since I had cracked one before on a previous transmission. I'm attaching the receipt too. The TCM is still flashed with the tune but if you can't read it off I can send you their TCM tune for it. Always ran 2 quarts over to help with heat and with a external transmission cooler. Shifted great at 7-7200 and didn't slip. around 2000 miles. $3100 shipped
The parts list picture is in the first post.
Will handle 1000-1100hp with proper tuning. If you have tire shake issues that can break the stock plantary. I never had issues with tire shake. The hard parts are there so tuning is critical.