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  1. #1

    Default Need assistance with replacing the transmission.

    I have a friend who has a 2WD, 1989 Chevy Suburban with a 350 and the 700R4. The transmission is failing/failed. What is the best, most economical replacement for this truck? Please consider that his son will be driving (probably with a heavy foot) and he wants to tow with it occasionally.

  2. #2

    Default

    Personally, I'd say drop another 700R4 in, though preferably from a 90-91 year model. They have upgraded internals over the older ones from what I understand. Make sure, though, that you don't get a 4L60-E, as those use the truck computer to control shift points, which the 89 model doesn't have. Also, make sure you get one from another 2wd, since the tailshaft is different on the 2wd and the 4wd. Other than that, if you wanted to build it up with upgraded components, it should last him well.
    Christopher

    1991 Chevy Suburban 1/2 ton 2WD w/ chevy SBC 350-3/4 ton drivetrain upgrade w/4.10 gears 200K miles
    2005 Saturn ION-2 Stock 265K miles
    1982 Bronco, 1993 Bronco (sold), 1971 M35A2 Deuce and a Half



    There are 10 kinds of people, those who understand binary, and those who dont...

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  3. #3

    Default

    How much money does he want to spend? The 700R4 can be built pretty strong. Like Crawdaddy said look for a 90/91 model the internals were beefed up a little. The last 700R4 lasted him how many miles? Probably enough to be a good recommendation for another one.

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