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4L60e vs. 4L80e

This is a discussion on 4L60e vs. 4L80e within the Transmission Tuning. forums, part of the Performance category; What is the difference betweent the two which one is better overall?...

  1. #1
    Registered User nicholasbrown59's Avatar
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    4L60e vs. 4L80e


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    What is the difference betweent the two which one is better overall?
    "Let the music be your master". Led Zeppelin

  2. #2
    2500 6.0 vortec
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    Re: 4L60e vs. 4L80e

    4l80e is a way stronger trans. hold way more hp then the 4160e also. First gear on the 4l80e is a lower ratio then the 4l60 for towing reasons.
    Last edited by 6.0vortecchevy; 10-09-2008 at 01:41 PM.

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    Re: 4L60e vs. 4L80e

    what are you planning on doing with your truck. They have their advantages. 4l80E much stronger and lower first whereas the 60 is a lot lighter, requires less enginge to push, but is weaker


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    Registered User Stevens07's Avatar
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    Re: 4L60e vs. 4L80e

    4L60-E 3.06 1.62 1.00 0.70 Light duty
    4L80-E 2.48 1.48 1.00 0.75 Heavy duty


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    Re: 4L60e vs. 4L80e

    4l80e actually has a [I]higher[I] first gear, but it does allow the engine to build torque without overpowering the output shaft or the rear diff.

  6. #6
    Manbearpig
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    Re: 4L60e vs. 4L80e

    6l80e IMO

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    Re: 4L60e vs. 4L80e

    Quote Originally Posted by Heavytruck
    4l80e actually has a [I]higher[I] first gear, but it does allow the engine to build torque without overpowering the output shaft or the rear diff.



    1st gear is physically higher but numerically it is a lower number.


    Basically no comparison other then they are both 4 speed autos. A 4L80E with a shift kit is about twice as strong as a fairly built 4L60E, at least according to transgo it is.
    1995 Silverado - ported vortec heads, 4L80E, efans, LT4 Hot Cam, Rear disc brake conversion w/drilled and slotted rotors
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    Re: 4L60e vs. 4L80e

    anyone know what the ratios are on the 4l70e?
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    Re: 4L60e vs. 4L80e

    Quote Originally Posted by bad2006z71
    anyone know what the ratios are on the 4l70e?
    Same as the 60e.
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    Re: 4L60e vs. 4L80e

    Quote Originally Posted by Quicksilverado
    Same as the 60e.
    Correct, the 4l70e is slightly strengthened 4l65e, which is a slightly strengthened 4l60e, which is and electronically controlled 4l60, which is a renamed 700r4 trans which dates back to the early 80's.

    I actually dont like the 6l80e/6l90e as the rpm drop between drop netween 1st and 2nd gear is HUGE, even worse than the 4l60e series of trans.
    First:4.02

    Second: 2.36

    Third:1.53

    Fourth: 1.15

    Fifth:0.85

    Sixth 0.67

    I do like its high 0.67:1 6th gear.

    I do like the 6l80e/6l90e transmissions torque capacity
    4l80e 440 lb/ft torque rating

    4l85e 460 lb/ft torque rating

    6l80e 469 hp,439 lb/ft torque rating

    6l90e 452 hp truck, 531 lb/ft truck, 555hp car, 550 lb/ft car.


    Another great feature of the 6l80e/6l90e transmissions is that they use a clutch to clutch arrangement, no more BANDS. Yeehaw.

    The best trans IMO would be a 4l80e with a 0.6:1 OD ratio.

    My favourite GM trans as far as automatic goes, is the thm 200r4.

    1st 2.74,
    2nd 1.57,
    3rd 1.00
    OD .67,
    R 2.29

    It has a slightly deeper 1st to get the car off the line, and a higher OD ratio to keep high rpms down.

    peace
    Pauly
    Last edited by Pauly; 10-10-2008 at 10:33 AM.
    97 GMC 2wd RCSB 5.7, s10 2700 footstall, Hooker 24621hkr LT's , 2.5" cats dual 4"pipes exit B4 pass. side tire, custom driveshaft 3.42 G80 FIPK MAF descreen GM/Mercruiser Marine intake manifold 29lb LS2(EV6) injectors Ed Wright PCM(best mod), LT4 KM 14.8@94mph 2.007 4000lbs 122mph

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    Re: 4L60e vs. 4L80e

    Quote Originally Posted by Pauly
    The best trans IMO would be a 4l80e with a 0.6:1 OD ratio.

    Pauly
    Do what? Over drive on the 4L80E is .75:1 which I don't particularly love but its worth it for the added strength of the transmission.
    1995 Silverado - ported vortec heads, 4L80E, efans, LT4 Hot Cam, Rear disc brake conversion w/drilled and slotted rotors
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    Re: 4L60e vs. 4L80e

    Quote Originally Posted by oldred95
    Do what? Over drive on the 4L80E is .75:1 which I don't particularly love but its worth it for the added strength of the transmission.
    I was speaking hypothetically, that the best trans for me woudl be a 4l80e BUT with a 0.6:1 OD ratio. Obviously not good for towing, but would work well for my purposes.

    peace
    PAuly
    97 GMC 2wd RCSB 5.7, s10 2700 footstall, Hooker 24621hkr LT's , 2.5" cats dual 4"pipes exit B4 pass. side tire, custom driveshaft 3.42 G80 FIPK MAF descreen GM/Mercruiser Marine intake manifold 29lb LS2(EV6) injectors Ed Wright PCM(best mod), LT4 KM 14.8@94mph 2.007 4000lbs 122mph

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    Re: 4L60e vs. 4L80e

    L60-e done me no harm behind an l31 for 286 000kms well beaten on. Mind you i have the tow package and it helps keep the tranny cooler. It is very close to it's death, But i have been saying that for 2 years now.

    Can't be a bad transmission at all. I can only imagine the added benefits of the 5 pinion planetary gears on the 4l65 and the "beast" sun shell. I am definately sticking to a properly built 4L60-e with all the goodies. I am definately regearing to 3.90 or 4.10 ratio because of the excessive loss of power and torque from 1st to second gear. It will help alot over 3.42.

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    Re: 4L60e vs. 4L80e

    If you want to swap rear gears, I suggest the 4.10's if you allready have 3.42's. I went 3.08's to 4.10's. It made a difference, but it wasnt as crazy as I thought it would be.

    peace
    PAuly
    97 GMC 2wd RCSB 5.7, s10 2700 footstall, Hooker 24621hkr LT's , 2.5" cats dual 4"pipes exit B4 pass. side tire, custom driveshaft 3.42 G80 FIPK MAF descreen GM/Mercruiser Marine intake manifold 29lb LS2(EV6) injectors Ed Wright PCM(best mod), LT4 KM 14.8@94mph 2.007 4000lbs 122mph

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    Re: 4L60e vs. 4L80e

    Quote Originally Posted by Pauly
    If you want to swap rear gears, I suggest the 4.10's if you allready have 3.42's. I went 3.08's to 4.10's. It made a difference, but it wasnt as crazy as I thought it would be.

    peace
    PAuly



    I went from 3.08s to 3.73s and other then being able to feel the corvette servo on the 1-2 shift and running more rpms at highway speeds I really didn't feel much difference.
    1995 Silverado - ported vortec heads, 4L80E, efans, LT4 Hot Cam, Rear disc brake conversion w/drilled and slotted rotors
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    Re: 4L60e vs. 4L80e

    Quote Originally Posted by Pauly
    If you want to swap rear gears, I suggest the 4.10's if you allready have 3.42's. I went 3.08's to 4.10's. It made a difference, but it wasnt as crazy as I thought it would be.

    peace
    PAuly

    Did the milage go down the drain aswell?

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    Re: 4L60e vs. 4L80e

    With all the troubles people seem to have with the 4L60E...Id never have one. I had a V spec TH700R4 in my 85 vette and beat on it for 154K miles and it never faltered. But most everyone I know with a 4L60 has had a sun shell failure, shift problems, OD problems...ugh

    4L80E for me.

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    Re: 4L60e vs. 4L80e

    I have regeared my 99 nbs to 4:10 gears. I love the better acceleration and better "in town" driving gas milage. The part that suck is running at 2600 rpm's at 80 mph on my way to work. It leaves me wanting to swap to a tranny with another gear. Can a auto 5spd be swapped into a 99 4wd?
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  19. #19
    I Hate You All, Equally.
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    Re: 4L60e vs. 4L80e

    It should also be mentioned, even though it may be common knowledge to some, is that the 4L60E and the 4L80E are not similar in any way.

    The way GM names these transmissions only denotes it's gears (4), Style of trans (Longitudinal or Transverse for FWD), A Useless Torque Capacity number (higher number is stronger) and finally if the transmission is electrically operated (E)

    The 4L80E is a bigger, heavier transmission, with much heavier larger components and a rock solid support for the gears and shafts. Nothing is shared with the 4L60E in terms of actual components.


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    Re: 4L60e vs. 4L80e

    With a higher stalled 4L80E, would it take off alot better when compared to a factory stalled? I'm contemplating putting a higher stall torque convertor in mine but I'm scared that I will lose my normal driveability.
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