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Thread: 2003 4l80e reverse went out. Should I buy it for $150?

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  1. #1
    Join Date
    Nov 2003
    Location
    Denton Texas
    Posts
    20,540
    if the servo went out or broke you can get to it without tearing much of anything apart since they're right on the bottom of the tranmission case. $150 is a bargain even for just a core. you can replace the output yoke with a slip style very easily. The 80e's come apart easily and then you can swap the output shaft.
    See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709

  2. #2
    Join Date
    Dec 2009
    Location
    Corona, CA
    Posts
    204
    Good to know Greg. Is that the servo that is located on the left side behind the valve body? I guess if that is the lowband/reverse servo than that is probably it lol. IIRC i think the transgo kit I just put in replaced that servo or maybe it was just springs. I think if the trans is belly up, the servo should be towards the tailshaft on the passenger side, correct??

    I just picked it up anyway. I figured, as you said yourself, the core is worth that alone. But now I feel a little better about the purchase. This trans is probably gonna go in the rafters till I get money to built it. I just didn't wanna let that deal go buy. I still have to save money for my verter dammit.

    BTW my transgo is installed except for the stiffer clutch springs behind the pump. (I havent removed my 60e yet because my bastard brother took my garage space because we live in a HOA and people were complaining about his El Camino sitting on jackstands so the build has ceased because I litterally have no room to continue my trans. Anyway, his driveshaft should finally be here this Fri.).

    I used a 1.5" or 1.75" split collar shaft and 2 c-clamps to remove it. However it felt like the pump was binding on something so I stopped the process. Is this something I should worry about or can I just pull it all the way out?

    Also what's the deal with the dial indicator I'm seeing guys use? Is that necessary if I'm not installing new clutch packs?
    Again I am transmission illiterate.

    Thanks guys
    2007 GMT900 CCSB 5.3 VTS2300 Twin Screw Supercharger, Doug Thorley LT's, True 3" Duals into Dynomax Race Bullets, Nelson Tune, 4L80e w/transgo HD2-D, Truetrac, 4.10 r&p
    Need list: Stall, PLX 200 for my crappy AFR, X-pipe, GM 20's.

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