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1989 Chevy Transmission Blown?

Discussion in 'Garage / Workshop' started by AeroCooper, Feb 4, 2015.

  1. Feb 4, 2015 at 5:23 PM
    #1
    AeroCooper

    AeroCooper [OP] Half the strength of ten (microscopic men)

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    I have a 1989 Chevy K1500 that we use for plowing our driveway (and our friends borrow it every storm :rolleyes: )

    Today they borrowed it and somehow ended up going off the edge of the driveway and got stuck while I was at work. Now it won't go into reverse anymore. From what I've read online, it sounds like it will need a new transmission.

    So I have 2 questions:

    Does anyone think it could be something other than a total transmission replacement/rebuild?

    How much would this cost? I saw a rebuild kit online for $300, but even though I used to be a mechanic, I've never done one of these, and it looks like a crapload of parts. Plus I don't have a garage, so it would have to be done in the driveway. I'm thinking not a good plan at all.

    It sucks that the truck always breaks when they take it. Last time it was the transfer case actuator, which I did change in the driveway. I put helper springs in last summer as well. I'm thinking it may be time to scrap it.
     
  2. Feb 4, 2015 at 5:44 PM
    #2
    gearcruncher

    gearcruncher Well-Known Member

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    Canadain bumper technician
    Great white North 51.0333° N, 93.8333° W
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    2010.TRD.SportDCLB4x4Limited leather package
    TRD Sport Rally -5 speed automatic Limited ,Factory heated leather seats ,chrome package,Super white with front windows tinted to 35 % Dick Cepek DC-2 wheels Summer tires - Good year silent armor P265/65R17 Winter tires - Good year P265/65R17 Ultra Ice studded Illuminated 4x4 switch TRD 3rd brake light cover ($20) TRD seat belt shoulder protectors (5). ($50) TRD ...B pillar emblems ($20) TRD rear slider sticker with devil horns ( $6) TRD summer floor matts ($60) TRD steering wheel emblem ($20) TRD floor pedals .($95) TRD shorty antenna ($14) TRD front Windshield emblems ($17) TRD head pillows .($60) TRD head rest protectors TRD door scuff protection $20 TRD floor matt emblems ($40) TRD tow plug emblem . ($40) TRD cigarette lighter with LED.($35) TRD tissue dispenser ($12) TRD front bezel emblems ($9) TRD door emblems ($6) TRD lanyards($9) TRD lisence plates with TRD bolts($50) TRD fender emblems TRD center caps Part Number:PT904-35070-CC ($80) TRD cd
    Chances are the drive shell busted . This was very common for that year .When the drive shell breaks , you loose 2nd gear and reverse .
    Very common on snow plows and for drivers not coming to a complete stop before selecting forward . There is a modification you can make called the " BEAST "
    Its a hardened drive shell with a thicker spline . Far better than the factory shell .
    Have a peek http://www.ebay.com/itm/700R4-700-4L60E-4L65E-DRIVE-SHELL-THE-BEAST-ALL-YEARS-/350161644578


    To add , I could probably walk you through this repair with ease . I actually won a trip a couple years ago for assembling one of these transmissions with a blindfold on .:cool:
    You need a new filter , pan gasket , pump seal , pump o-ring , and an outer accumulator seal to fix this . Call a transmission shop as they have these seals laying around on the cheap .




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    Last edited: Feb 4, 2015
  3. Feb 4, 2015 at 6:07 PM
    #3
    AeroCooper

    AeroCooper [OP] Half the strength of ten (microscopic men)

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    2018 Barcelona Access Cab Off Road
    Remote start, tailgate inserts, nifty key fob case, Husky X-Act floor liners, AVS vent shades, bed mat, MX4 Tonneau cover, Tyger step rails
    Interesting. For $56 it sounds like a great deal.

    This isn't sounding good for me though, with no lift:
     
  4. Feb 4, 2015 at 6:17 PM
    #4
    gearcruncher

    gearcruncher Well-Known Member

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    2010.TRD.SportDCLB4x4Limited leather package
    TRD Sport Rally -5 speed automatic Limited ,Factory heated leather seats ,chrome package,Super white with front windows tinted to 35 % Dick Cepek DC-2 wheels Summer tires - Good year silent armor P265/65R17 Winter tires - Good year P265/65R17 Ultra Ice studded Illuminated 4x4 switch TRD 3rd brake light cover ($20) TRD seat belt shoulder protectors (5). ($50) TRD ...B pillar emblems ($20) TRD rear slider sticker with devil horns ( $6) TRD summer floor matts ($60) TRD steering wheel emblem ($20) TRD floor pedals .($95) TRD shorty antenna ($14) TRD front Windshield emblems ($17) TRD head pillows .($60) TRD head rest protectors TRD door scuff protection $20 TRD floor matt emblems ($40) TRD tow plug emblem . ($40) TRD cigarette lighter with LED.($35) TRD tissue dispenser ($12) TRD front bezel emblems ($9) TRD door emblems ($6) TRD lanyards($9) TRD lisence plates with TRD bolts($50) TRD fender emblems TRD center caps Part Number:PT904-35070-CC ($80) TRD cd
    Yes , it has to come out and apart but not fully apart . If everything else was working fine before you lost reverse , you have a good chance its just the drive shell . You can cheat the overhaul procedure by going into the transmission and just replacing that shell . Unfortunately , you will need to replace a couple oil seals to get at it . To verify the shell is broken , take if for a drive in forward and see if the transmission skips second gear and goes directly to 3rd . On the cheap you can fix this for about $100 bucks and about $300 if you take it into a trans shop .
     

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