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GM Transmissions
4L80/85E Transmissions. 6L90 Transmission
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Sticky
GM 4L80E/4L60E Reference Material, Manuals, FAQ's/Parts List. (Updated November 2018)
knkreb
Feb 10, 2008
Locked
1
70K
Apr 12, 2015
by
Freddyack
ATTENTION
Sticky
Your input needed for building FAQ's for tranny
knkreb
Feb 10, 2008
2
39
67K
Mar 23, 2015
by
Diaric
R
Info:
Sticky
4L80E Conversion - Older Truck
RD Durham
Feb 13, 2015
2
17K
Feb 14, 2015
by
RD Durham
Info:
Sticky
The most common problem facing the 4L80-E NO OVERDRIVE and how to deal with it.
GenBiltstein
Aug 29, 2009
Locked
4
132K
Jul 27, 2011
by
GenBiltstein
Info:
Sticky
Leaving electrical and going into Hydraulic. Repeated DTCs?
GenBiltstein
Feb 11, 2010
Locked
2
10K
Feb 11, 2010
by
GenBiltstein
ATTENTION
Sticky
First posters new to 4L80-E/ 4l85-E Transmission forum? Read before posting.
GenBiltstein
Feb 10, 2010
Locked
0
16K
Feb 10, 2010
by
GenBiltstein
D
First Post after 4 years. 4L80E question/concern
detroitgilby
6d ago
2
180
6d ago
by
detroitgilby
RESOLVED
[Broken LINK] 4L80E Automatic Transmission Rebuild Manual
1994K2500Chevy
Jan 24, 2024
3
226
Jan 25, 2024
by
OkDually
J
Question:
4L80E Earlier vs. Later Torque Converter Compabitility (Hub Length)
joe458
Dec 14, 2023
2
229
Dec 15, 2023
by
joe458
1998 P-Series ENGINE 6.5LNon Turbo 4L80
Jess_sr
Oct 24, 2023
0
203
Oct 24, 2023
by
Jess_sr
Question:
4L80-E troubles in Sweden.
cncmaskinen
Oct 16, 2023
1
426
Oct 16, 2023
by
OkDually
Question:
4L80-E transmission leak
michel_n
Sep 20, 2023
3
763
Sep 25, 2023
by
ansan12001
D
Question:
Shift Solenoid Change when Changing Transmission Fluid and Filter?
Diesel_Suburban
Sep 19, 2023
1
421
Sep 20, 2023
by
dieselolds
Question:
4L80 dust cover
Twisted Steel Performance
Sep 18, 2023
3
587
Sep 20, 2023
by
Twisted Steel Performance
Which Transmission do I have?
KenAsh
Sep 5, 2023
6
494
Sep 5, 2023
by
KenAsh
M
Use both trans cooler in rad and external?
mgray1982
Aug 19, 2023
1
340
Aug 19, 2023
by
OkDually
Question:
6L90e Weird Problem
kevprelude
Aug 15, 2023
0
362
Aug 15, 2023
by
kevprelude
B
4L80E gas vs diesel does it fit
Blowerbob
Jul 16, 2023
8
647
Jul 18, 2023
by
dieselolds
U
Question:
1996 GMC K2500 With Slight Shudder
UtahSmitty
Jul 17, 2023
2
366
Jul 17, 2023
by
dieselolds
S
STUMPED! 4L80E in/out fluid ports!
Still Bill
Feb 13, 2019
11
24K
Jul 10, 2023
by
udidwht
change over from diesel to gas engine
baked1023
Jul 1, 2023
2
437
Jul 1, 2023
by
bobbywalter
4L80E transmission slipping
michel_n
Jun 16, 2023
6
2K
Jun 16, 2023
by
dieselolds
L
Question:
Hole in my Transmission Fluid Cooler Line = replace line OR cut section and install Hose? 1994 6.5l
LAJoe6.5L
Nov 15, 2022
2
814
Apr 2, 2023
by
DeerCreekFarm
C
Limp mode/no shift K3500 Intermittent
Cabriar
Oct 17, 2022
4
2K
Mar 31, 2023
by
DeerCreekFarm
Question:
1998 6.5 loses 4th and no tcc locup 4l80E what is line pressure spec?
daltoncase
Feb 3, 2023
3
987
Mar 28, 2023
by
OkDually
Question:
Sonnax servo
Wetdreams
Mar 12, 2023
1
475
Mar 12, 2023
by
dieselolds
4L80E stays in 1st............?
DeerCreekFarm
Feb 20, 2023
38
2K
Feb 23, 2023
by
DeerCreekFarm
Info:
SOLVED TPS install/adjustment specs for 93 c2500 6.5l with 4l80e
599
Dec 7, 2022
3
2K
Dec 8, 2022
by
599
Question:
4L85e high TC slip speeds
MLars
Aug 2, 2022
0
1K
Aug 2, 2022
by
MLars
T
Question:
4L80 no overdrive or 4th. Rebuilt trans.
Tron213
May 27, 2022
6
2K
May 31, 2022
by
richardht1948
4l80e giving me grief...
donzoid
Apr 25, 2022
5
2K
May 15, 2022
by
donzoid
Question:
Dipstick for 6L90/MYD 6 spd used in the gas 6.6
64bawagon
Apr 10, 2022
1
3K
Apr 30, 2022
by
64bawagon
4l80e not shifting out of 1st
94_6.5l
Apr 20, 2022
3
2K
Apr 20, 2022
by
OkDually
Question:
Rebuild kit
MrPliskin
Feb 2, 2022
8
2K
Apr 19, 2022
by
MrPliskin
Question:
Limp mode insanity
MrPliskin
Apr 11, 2022
0
1K
Apr 11, 2022
by
MrPliskin
Question:
80LE trans
grancito
Mar 22, 2022
5
2K
Mar 22, 2022
by
grancito
K
Question:
1986 M1031 from TH400 to 4L80
Keith_J
Feb 28, 2022
1
1K
Mar 1, 2022
by
Keith_J
4l80e needs high rpm to move
Husker67
Jan 10, 2022
10
3K
Feb 7, 2022
by
OkDually
Lots of codes
96C3500
Jan 14, 2022
54
3K
Feb 3, 2022
by
96C3500
No Overdrive No codes
96C3500
Jan 5, 2022
13
2K
Jan 7, 2022
by
96C3500
G
Intermittent loss of overdrive. NO DTC,S. WTF
Goose57
Jul 8, 2021
5
2K
Jan 2, 2022
by
DeerCreekFarm
1
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4L80/85E Transmissions. 6L90 Transmission
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Discuss the 4L80/85E transmissions found in the 6.2/6.5L equipped vehicles and Duramax equipped vans. 6L90 discussion.
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