"Suped" up the Avalanche
#11
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mike at new era performance has trucks he tunes running a lot more power than this on a stock 6l80e with no problems. of course the 4l80e is strong but i cant comment on the swap thats something you would have to research on.
#13
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The 6 speeds seem to be holding up pretty good. I have seen numerous 600 to 700rwhp vettes run them and hold up. I know a truck is a lot heavier but you wont see to many 700rwhp 4l60s stay together in any vehicle. I am typically not too hard on my vehicles so I might not be the best test case. My old 04 silverado with a 4l60e and g80 held up until the day I sold it with 130k supercharged miles and simular power of the avalanche.
#17
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My Roush kit has worked flawless. The only issue I had was I ended up gernading the G80. 6000 pounds, 33s and barking 2nd killed the stock limited slip. I now have a trutrac that works like a champ. You cant go wrong with any of the tvs setups. I had a Mp112 Maggie on my 04 Silverado and it worked great with no issues also. The tvs makes a little more power and is quiter than my Maggie but both drive virtually stock with minimal maintenance.
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