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Doubler ???????

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by wayne, Jul 29, 2001.

  1. wayne

    wayne 3/4 ton status

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    Before you ask, yes I am thinking about doing a doubler. If I do it it will be later this year after I get a few other things done. My ?'s are will a Dodge 205 work or should I use a GM. I can get a th400 and 203 fairley cheap but need to know on the 205. Also I now have a 700r4 which I like the overdrive so if I switch to a th400 with 35's and 4:56's will it still have decent street maners. I am not worried about gas milage but I want to be able to cruise 75mph on the highway without problems. Thanks.

    <font color=blue>Wayne<font color=blue>
    <font color=blue>Happy Trails<font color=blue>
     
  2. solowookie

    solowookie 1/2 ton status

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    it's not the same tranny, but I'm running a sm465 with 4.10's and 35's. I don't think I'd change over to 4.56's unless I also had an OD.

    [​IMG] <font color=blue> Jeff </font color=blue> [​IMG]
     
  3. fr8train

    fr8train 1/2 ton status

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    Hey Wayne!!!!!!!!!!!! I have a chevy 205 sitting in the storage waiting for a loving home.
     
  4. pcorssmit

    pcorssmit 1/2 ton status

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    You'd be looking more like 70-72. Try driving with your trans in 3rd and see how you like it. Keep in mind also that the 700 has a 3.06:1 first, the 400 is 2.48:1.

    Pete

    '83 K5, 350 TBI (ex 6.2), 700R4, NP208, Dana 60/14 bolt, 4.56s, Detroits, 3" lift, 15-39.5x15 TSLs
    '97 Dodge 2500 4x4 CC LB Sport, Cummins 5 spd
     
  5. ftn96

    ftn96 1/2 ton status

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    Wayne, do you have 4.10's now?
    If so, with the doubler, I'd keep the 4.10's with 35's to keep you good to go at 70 on the interstate but hten off-road with the doubler your gonna have all sorts of low end.

    I pay ya to work it not jerk it![​IMG]
    <a target="_blank" href=http://www.nashvillek5.freeservers.com>www.nashvillek5.freeservers.com</a>
     
  6. wayne

    wayne 3/4 ton status

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    At the moment it is stock but I have a Dana 60 and 14ff with lockers and 4:56's getting ready to go under. I usually keep it out of overdrive unless I am on the highway and it is not bad up to 70 or so. I guess if I leave the 4:56's in when I do the doubler that would be a good excuse to get bigger tires. [​IMG] Also it is easier to change tire size then a gear swap. I am in the planning stages for it now so I can get an idea of what to expect and what kind of cost I am looking at.

    <font color=blue>Wayne<font color=blue>
    <font color=blue>Happy Trails<font color=blue>
     

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