Re: Rebuilding a 4l80e
Just because some have lasted to the power, doesn't mean they all will. Saying lines like that will cost people parts, time, and money. There will be 100 times more people that have lost trannys at that power than have survived. If they lasted that long stock, then there wouldn't be an aftermarket like there is for them.
How is that? If you make that much power that you start slipping bad, put upgraded clutches in it. If you shear off an input shaft, put a good one in it. They are proven to stand up, not just one or two. Sure if you have all that money laying around and want all the extra insurance thats fine. Just because it has aftermarket parts in it doesnt mean it may not break just the same as a stock one. Parts fail, thats racing. Saying lines like that saves people money and time that they would otherwise waste out of fear.
I had mine openend up because of a stuck pressure regulator valve in the pump. I wanted to see how everything was holding up in there and couldnt believe just how good it was. The clutches show minimal wear, all the hard parts look good as new, etc. That trans went in the truck in 2005, its been 15-20,000 miles on the street, never getting driven without running it hard. Its been down the track a bunch of times and from all that abuse it looked better inside than I could have hoped. That says something for how good they hold up.
There is an aftermarket for them because they are so popular. They hold so much power, they have overdrive, and have lock up converter capability. They are a dream come true for guys who actually make a lot of horsepower and still drive it out on the street. If you made aftermarket transmission parts you would obviously want to make parts for a popular transmission so you can sell lots of your parts and make lots of money.
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