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My Performance 4L60e being built right now

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Old 05-07-2010, 09:38 AM
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Originally Posted by stevenc

I am curious how the stock one restalled to 2800 will be in terms of looseness. My 2400 is a restalled stock one, and its pretty good, i figure if it was higher it would be really lose. Assuming you have one already, but if not definitely get a cooler. Mine gets pretty hot in stop go traffic.
I have a cooler in front of the radiator thats about 6x12 inches. I have a 6.0 going in next month along stronger flex plate, a 34" radiator with built in transcooler and electric fans. Going to look into additional things that can be added to cool it even more.

The stall was not supposed to go in until the 6.0 was installed but no need to replace the one in there right now and then again with the 6.0 swap one.

Last edited by pasadenaman; 05-09-2010 at 08:14 AM.
Old 05-07-2010, 11:59 AM
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i would invest in a hardened output shaft too, i have broken 2 of them so far
Old 05-07-2010, 12:05 PM
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I will do that at the end of the year. I ran out of funds on the 60e build. I think that shaft was about $450. I am upgrading the axle shafts this year though...
Old 05-07-2010, 12:37 PM
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you must have been looking at billet shafts for that price, hardened ones are about 1/2 that
Old 05-07-2010, 03:20 PM
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Originally Posted by 454navyss
you must have been looking at billet shafts for that price, hardened ones are about 1/2 that
4l70e shafts are hardened and cyro treated and alot less then a billet. Don't have any experience with them but I will be running one in my next build.
Old 05-07-2010, 03:25 PM
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So, what would be the benefit of just finding a low mileage 4L80 and putting it in? Is there a lot to change or is that just a pretty easy swap? Would a 4L80e be just as strong as all this or.....just trying to figure all this out, thats a lot of money to spend on a transmission
Old 05-07-2010, 04:03 PM
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Default Just some pix sent to me by the builder

Just a few pix of my tranny tore up.

From what was discovered no seals have ever been replaced, just the clutches. The pump came apart too easy. Luckaly my servos where in there. That rules out that they just went to a junk yard and put that in mine. The transmission was the blackest he had ever seen, no red tint to it at all. There was silicone in the trans as well(not a good thing)
Attached Thumbnails My Performance 4L60e being built right now-050710152622.jpg   My Performance 4L60e being built right now-050710152247.jpg   My Performance 4L60e being built right now-050710145159.jpg   My Performance 4L60e being built right now-a050710152917.jpg  

Last edited by pasadenaman; 05-09-2010 at 08:16 AM.
Old 05-07-2010, 04:15 PM
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Originally Posted by 1LOW4X4
So, what would be the benefit of just finding a low mileage 4L80 and putting it in? Is there a lot to change or is that just a pretty easy swap? Would a 4L80e be just as strong as all this or.....just trying to figure all this out, thats a lot of money to spend on a transmission
You have to put the money where you need it. PM sent with a 60e-80e swap instructions
Old 05-07-2010, 04:51 PM
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Default Failures

Aside from the first problems mentioned, there was a stuck check ball. Luckally a bought a new separator plate with the rest of the parts.
Attached Thumbnails My Performance 4L60e being built right now-a050710161005.jpg   My Performance 4L60e being built right now-a050710161103.jpg   My Performance 4L60e being built right now-a050710161053.jpg  
Old 05-07-2010, 04:56 PM
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I agree. That's why mine wont engage until 60 mph in 4th. Turned off for 3rd gear. I'm not worried about fuel mileage. Mine foot stalls to 3000 just like clockwork.
Originally Posted by bluecajun5.3
lockup clutch on the tci beware...


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