4l80 questions.. - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**mongocanfly** · 11-20-2018, 09:59 PM

I have a 91 4wd burb than I'm scrapping out....the 4l80 is supposed to be good but has 155k mile on it...I was told these early 4l80s didn't have a controller...but I'm thinking there is something...if so is the controller worth pulling?....and where is it?...all im gonna do is throw the trans on craigslist....I've also been told the early 4l80s are somewhat desirable...but it better sell quick or it's on its way to the scrapyard...

sweetk30 · 11-20-2018, 10:09 PM

4l80-e is only electric controlled with a computer from gm factory .

if its a gas engine with tbi fuel injection its done with the tbi computer . if its a 6.2/6.5 diesel then there was a stand alone computer .

i wouldnt scrap it . check yor local trans guys they might give you some good cash for it as a core / rebuild able unit .

**mongocanfly** · 11-20-2018, 11:19 PM

It was a gas burner...

BR3W CITY · 11-20-2018, 11:30 PM

the earlier 80's had a few differences in wiring, but the newer stuff swaps in iirc. You're harness will most likely be setup for the ~97+ style wiring if you had one built.

ls1nova71 · 11-20-2018, 11:32 PM

Are you parting the Suburban? If so, I'd be interested in the speedo cluster...

**mongocanfly** · 11-21-2018, 12:18 AM

Brew ...i am only going to try to sell it..i have no plans to use it

Eric..I did pull the cluster..I have no idea if it works....the p.o. said it did...he said everything worked when he pulled the engine to rebuild..he couldn't finish it due to illness...
I was gonna save the bezel as well but it has a crack and a broke corner by the steering wheel...

ls1nova71 · 11-21-2018, 03:53 AM

All I would need is the cluster, the bezel isnt a big deal to me.

11-20-2018, 09:59 PM	#1
mongocanfly Post Whore Join Date: May 2015 Location: Alabama Posts: 14,607	4l80 questions.. I have a 91 4wd burb than I'm scrapping out....the 4l80 is supposed to be good but has 155k mile on it...I was told these early 4l80s didn't have a controller...but I'm thinking there is something...if so is the controller worth pulling?....and where is it?...all im gonna do is throw the trans on craigslist....I've also been told the early 4l80s are somewhat desirable...but it better sell quick or it's on its way to the scrapyard... __________________ Mongo...aka Greg RIP Dad RIP Jesse 1981 C30 LQ9 NV4500..http://67-72chevytrucks.com/vboard/s...d.php?t=753598 Mongos AD- LS3 TR6060...http://67-72chevytrucks.com/vboard/s...34#post8522334 Columbus..the 1957 IH 4x4...http://67-72chevytrucks.com/vboard/s...63#post8082563 2023 Chevy Z71..daily driver

11-20-2018, 10:09 PM	#2
sweetk30 Registered User Join Date: May 2012 Location: horseheads,ny rust belt Posts: 2,794	Re: 4l80 questions.. 4l80-e is only electric controlled with a computer from gm factory . if its a gas engine with tbi fuel injection its done with the tbi computer . if its a 6.2/6.5 diesel then there was a stand alone computer . i wouldnt scrap it . check yor local trans guys they might give you some good cash for it as a core / rebuild able unit . __________________ 77-k30lb BIG truck build . 87-k30lb budget beater build . 85-k30lb the plow machine build . 85-c10sb summer fun toy . ----------------------------- HOLLEY SNIPER efi = worst case of p.i.t.a i ever had . EDELBROCK pro flo 4 = best deal going so far . love my setup works great.

11-20-2018, 11:19 PM	#3
mongocanfly Post Whore Join Date: May 2015 Location: Alabama Posts: 14,607	Re: 4l80 questions.. It was a gas burner... __________________ Mongo...aka Greg RIP Dad RIP Jesse 1981 C30 LQ9 NV4500..http://67-72chevytrucks.com/vboard/s...d.php?t=753598 Mongos AD- LS3 TR6060...http://67-72chevytrucks.com/vboard/s...34#post8522334 Columbus..the 1957 IH 4x4...http://67-72chevytrucks.com/vboard/s...63#post8082563 2023 Chevy Z71..daily driver

11-20-2018, 11:30 PM	#4
BR3W CITY meowMEOWmeowMEOW Join Date: Sep 2009 Location: MKE WI Posts: 7,128	Re: 4l80 questions.. the earlier 80's had a few differences in wiring, but the newer stuff swaps in iirc. You're harness will most likely be setup for the ~97+ style wiring if you had one built. __________________ *'66 Short Step / SD Tuned / Big Cam LQ4 / Backhalfed /Built 4l80e / #REBUILDEVERYTHING* MY BUILD THE H8RDCPTR //\\ MY YOUTUBE CHANNEL REV J HD

11-20-2018, 11:32 PM	#5
ls1nova71 Registered User Join Date: Dec 2009 Location: Independence Mo Posts: 4,118	Re: 4l80 questions.. Are you parting the Suburban? If so, I'd be interested in the speedo cluster... __________________ My '72 short bed build. http://www.ls1tech.com/forums/conver...6-0-4l80e.html 5.3 swap into my RUSTY '71 C10 http://ls1tech.com/forums/conversion...71-c-10-a.html

11-21-2018, 12:18 AM	#6
mongocanfly Post Whore Join Date: May 2015 Location: Alabama Posts: 14,607	Re: 4l80 questions.. Brew ...i am only going to try to sell it..i have no plans to use it Eric..I did pull the cluster..I have no idea if it works....the p.o. said it did...he said everything worked when he pulled the engine to rebuild..he couldn't finish it due to illness... I was gonna save the bezel as well but it has a crack and a broke corner by the steering wheel... __________________ Mongo...aka Greg RIP Dad RIP Jesse 1981 C30 LQ9 NV4500..http://67-72chevytrucks.com/vboard/s...d.php?t=753598 Mongos AD- LS3 TR6060...http://67-72chevytrucks.com/vboard/s...34#post8522334 Columbus..the 1957 IH 4x4...http://67-72chevytrucks.com/vboard/s...63#post8082563 2023 Chevy Z71..daily driver

11-21-2018, 03:53 AM	#7
ls1nova71 Registered User Join Date: Dec 2009 Location: Independence Mo Posts: 4,118	Re: 4l80 questions.. All I would need is the cluster, the bezel isnt a big deal to me. __________________ My '72 short bed build. http://www.ls1tech.com/forums/conver...6-0-4l80e.html 5.3 swap into my RUSTY '71 C10 http://ls1tech.com/forums/conversion...71-c-10-a.html



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