![]() 06/07/2019 at 02:22 • Filed to: None | ![]() | ![]() |
4L80E: REALLY REALLY FUGGIN HEAVY.
I’m going to bed now.
![]() 06/07/2019 at 07:41 |
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Wait, what? Why did a 4L80 need to come out????
I expect that with a 4L60. Although my 4L65 has yet to do me wrong in 13 years *knocks wood*
![]() 06/07/2019 at 10:30 |
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I’m replacing the slobbering rear main seal!
![]() 06/07/2019 at 12:18 |
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4l80e’s can go anywhere from 150k to 250k miles. Mine just started shifting hard intermittently at 165k. Might get another 30k out of it.
![]() 06/07/2019 at 13:05 |
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Riiiiiiiiight! I forgot about that.
![]() 06/07/2019 at 13:08 |
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142k and counting on my 4L65. *Knocks wood again*
![]() 06/07/2019 at 13:44 |
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I’m at 155k miles. The truck came without a brake controller and without a single scratch on the receiver hitch at 130k miles, so I’m thinking it led a pretty easy life before I got it. I’m really hoping the trans lasts another 100k. So far, my luck with Chevies has gone like this: as long as they’re neglected, they’ll have issues but they’ll still be reliable. Once you start fixing stuff, they fall the fuck apart. Here’s hoping I can break that cycle with this ‘ Burban.
![]() 06/07/2019 at 13:48 |
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I was trying to diagnose a rattle the other day and when I crawled underneath to listen while it was running I noticed the puddle of oil had grown to about 4" across in the < 5 minutes it was running. I also figured the noise was probably a cracked flex plate, but it turned out to just be 2 loose torque converter bolts (at least that’s the only issue I found while disassembling).
![]() 06/07/2019 at 13:50 |
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It seems like GMT800s didn’t have anywhere near the issues with the 4L6xE as the GMT400s did. I still have trust issues with half-ton GM trucks, though.
![]() 06/07/2019 at 15:20 |
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Definitely time to fix that.
![]() 06/07/2019 at 15:21 |
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Mine has been incredibly reliable. The only failure I've ever had since new, was last year when I popped a brake line due to rust.
![]() 06/07/2019 at 16:44 |
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After spending a bunch of time under this thing lately, I can totally see how they rust so badly in salty conditions. There's not much rust prevention in use on these!
![]() 06/07/2019 at 16:48 |
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No. No there isn't.