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LSX 438 Twin Turbo

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Old 02-18-2008, 11:17 PM
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Congratulations Mark. Seriously, it sounded real quiet...until your foot went down and the front came up, quite impressive. 2 steps forward and one step back, you will be there shortly.
Old 02-18-2008, 11:20 PM
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Originally Posted by trever1t
Congratulations Mark. Seriously, it sounded real quiet...until your foot went down and the front came up, quite impressive. 2 steps forward and one step back, you will be there shortly.
funny thing is, The tranny was the last thing I thought I would have a problem with, I think it will all work out
Old 02-18-2008, 11:49 PM
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That sucks I guess they'll just have to develop a stronger tranny because of your truck huh
Old 02-19-2008, 04:22 AM
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I think that thing is going to be hell on trannies. ALLOT of wieght and a **** load of torque.
Old 02-19-2008, 04:44 AM
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Originally Posted by 03sierraslt
I think that thing is going to be hell on trannies. ALLOT of wieght and a **** load of torque.
no more than Parish, I do weigh 6300 pounds though
Old 02-19-2008, 04:49 AM
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Originally Posted by 2004Denali
no more than Parish, I do weigh 6300 pounds though
Ya, and thats 1300lb more then Parish. Also you havent even got it to high boost yet. Parish did like 1080hp/1150tq@ 5000lb or so. That whole wieght thing is a big deal, 1300lb makes a huge difference in the life of a tranny.
Old 02-19-2008, 06:49 AM
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A problem like that is likely just from a faulty part. You can pay for the best builder and the best parts and in the end a simple bad seal or imperfect hard part can kill it quickly. A 4L80E certainly isn't indestructable either, we replace them in stock trucks at work just like we do the 4L60E's. I'm sure whatever it is should stick out like a sore thumb upon teardown and you'll be set.
Old 02-19-2008, 08:58 AM
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Damn mark, that sucks... I thought the 4l80 would be fine at least for a while.. Hopfully Zippy is right and it is just a flaw in a hard part.....
Old 02-19-2008, 01:23 PM
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Originally Posted by zippy
A problem like that is likely just from a faulty part. You can pay for the best builder and the best parts and in the end a simple bad seal or imperfect hard part can kill it quickly. A 4L80E certainly isn't indestructable either, we replace them in stock trucks at work just like we do the 4L60E's. I'm sure whatever it is should stick out like a sore thumb upon teardown and you'll be set.
I agree 100%,
Old 02-19-2008, 03:02 PM
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Originally Posted by 2004Denali
funny thing is, The tranny was the last thing I thought I would have a problem with, I think it will all work out

Sorry to hear that Mark.

I wish I didnt ask you to get into it when you left.


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