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Author Topic: 1980 K20 TH400 problem  (Read 16410 times)

Offline Austin4wd

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Re: 1980 K20 TH400 problem
« Reply #15 on: June 13, 2016, 12:52:56 pm »
I like the 400, it's a really tough trans and as I said earlier this is the first time one has given me problems, and I got one in an S10 (has a supercharged 383 in front of it) and not one problem
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'88 K5 Blazer (daily)
'80 K10 Sierra Grande (restoration)
'80 K20 Sierra Grande (Duramax swap0
'93 C10 Silverado (future build)
'90 Cavalier (RWD SBC swap in mind)

Offline hatzie

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Re: 1980 K20 TH400 problem
« Reply #16 on: June 14, 2016, 08:23:36 am »
Might be an excuse to get a reman 4L80E...  Then again fixing the TH400 is probably cheaper. 

Putting a real filter in the cooler lines will keep things like 4L80E valve body screens clear of crud.   Even the TH400 will benefit.
« Last Edit: June 14, 2016, 08:33:42 am by hatzie »
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Offline Austin4wd

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Re: 1980 K20 TH400 problem
« Reply #17 on: June 15, 2016, 03:33:03 pm »
Lol I tried convincing my girlfriend to let me 4L80 the truck but she shoot me down (dang women lol) but yeah I got a buddy who's willing to rebuild the 400, just gotta bring him the trans
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'88 K5 Blazer (daily)
'80 K10 Sierra Grande (restoration)
'80 K20 Sierra Grande (Duramax swap0
'93 C10 Silverado (future build)
'90 Cavalier (RWD SBC swap in mind)

Offline LTZ C20

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Re: 1980 K20 TH400 problem
« Reply #18 on: June 15, 2016, 11:20:51 pm »
Does she own it? I usually just tell my girlfriend what I'm gonna do or after I've already done it. I usually just get an "ok whatever you want" or the "your stupid" look. Do what you want to it, it's your truck, right?
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LTZ Cheyenne C20

Offline Irish_Alley

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Re: 1980 K20 TH400 problem
« Reply #19 on: June 16, 2016, 07:03:48 am »
usually they understand "but it will save gas money cause of the OD" price of a 4l80e and the stand alone tcu is maybe 500-1000 more than the th400 rebuild.
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Offline hatzie

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Re: 1980 K20 TH400 problem
« Reply #20 on: June 16, 2016, 08:15:43 am »
Quote from: Austin4wd on June 15, 2016, 03:33:03 pm
Lol I tried convincing my girlfriend to let me 4L80 the truck but she shoot me down (dang women lol) but yeah I got a buddy who's willing to rebuild the 400, just gotta bring him the trans

Girlfriend or wife?  My girlfriend has ZERO say in how I spend my money.  Don't like it?  There's the door.
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Offline Irish_Alley

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Re: 1980 K20 TH400 problem
« Reply #21 on: June 16, 2016, 08:17:33 am »
what about if your girlfriend says yes but the wife says no???
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If you can’t tell yourself the truth, who can you tell it to?~Irish_Alley

When you have eliminated the impossible, whatever remains, however improbable, must be the truth ~Sherlock Holmes

Offline LTZ C20

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Re: 1980 K20 TH400 problem
« Reply #22 on: June 16, 2016, 04:58:10 pm »
Quote from: Irish_Alley on June 16, 2016, 08:17:33 am
what about if your girlfriend says yes but the wife says no???
Well then it's the same as when mom said no and dad said yes. You do it anyway because one said yes. And if the other says "I said no" you say "but the girlfriend said yes" that will change the wife's mind lol.
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Offline Irish_Alley

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Re: 1980 K20 TH400 problem
« Reply #23 on: June 17, 2016, 07:15:15 am »
lol the subject will be changed in a second and she wont be thinking about the 4l80e. so lose/win ???
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If you can’t tell yourself the truth, who can you tell it to?~Irish_Alley

When you have eliminated the impossible, whatever remains, however improbable, must be the truth ~Sherlock Holmes

Offline LTZ C20

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Re: 1980 K20 TH400 problem
« Reply #24 on: June 18, 2016, 03:04:44 am »
I thought that was still a win/win? How could it not be? Lol
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Offline Irish_Alley

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Re: 1980 K20 TH400 problem
« Reply #25 on: June 18, 2016, 07:09:11 am »
cause the wife finds out about the girlfriend
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If you can’t tell yourself the truth, who can you tell it to?~Irish_Alley

When you have eliminated the impossible, whatever remains, however improbable, must be the truth ~Sherlock Holmes

Offline hatzie

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Re: 1980 K20 TH400 problem
« Reply #26 on: June 18, 2016, 07:25:46 am »
Quote from: Irish_Alley on June 18, 2016, 07:09:11 am
cause the wife finds out about the girlfriend

And how is that not a win?  You get rid of both of them...
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SVC & wiring mans --> Here http://tinyurl.com/7387BRD-SVCMAN or My Bucket @ http://tinyurl.com/SQ-SVCMAN
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Offline VileZambonie

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Re: 1980 K20 TH400 problem
« Reply #27 on: June 18, 2016, 08:31:24 am »
lol

Quote
girlfriend to let me

Something I will never understand. I have never had problems meeting women, having girlfriends and long term relationships etc but I would NEVER be with a girl who didn't want me to be happy. Part of my happiness includes doing whatever I want with my trucks and my life. How come so many guys have to ask permission from their girlfriends or wives to do things to their trucks? Time to trade in your pocket books for a wallet gentlemen!

I digress, did you drop the pan and check the filter/pickup tube assembly? check the valve body bolts too while you're under there (and don't ask for permission, ask for forgiveness instead)
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Offline Irish_Alley

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Re: 1980 K20 TH400 problem
« Reply #28 on: June 18, 2016, 10:05:06 am »
Quote from: hatzie on June 18, 2016, 07:25:46 am
Quote from: Irish_Alley on June 18, 2016, 07:09:11 am
cause the wife finds out about the girlfriend

And how is that not a win?  You get rid of both of them...
cause when she devorces you she will take the truck and the house lol.
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If you can’t tell yourself the truth, who can you tell it to?~Irish_Alley

When you have eliminated the impossible, whatever remains, however improbable, must be the truth ~Sherlock Holmes

Offline LTZ C20

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Re: 1980 K20 TH400 problem
« Reply #29 on: June 18, 2016, 10:33:10 am »
I think this has gone to far haha.
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