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Thread: Isuzu MSA Gearbox to LT230

  1. 22nd September 2010, 08:34 PM #71
    SheldonA Guest
    Quote Originally Posted by ScottW View Post
    What are the ratios in the isuzu box? It sounds like 1st is pretty low. Great for offroad
    Also, does anyone have an idea on an approx cost for an isuzu box?

    I'm intrested to know how this is fairing.

    Edit: Just found this.

    Isuzu MSA ratios
    The MSA-5G I would recommend;

    5.788:1
    2.998:1
    1.594:1
    1.000:1
    0.776:1
    5.798:1

    3rd gear is about right to move along in 50 or 60 speed zones, where as some of the other boxes are a bit lower in 3rd so may not be as user friendly (switching b/n 3rd and 4th all the time).

    1st gear is 59% lower in the MSA-5G compared to the LT85 - even lower than a (~$1200?) Maxi-Drive 49% reduction......

    5th is also 2% quicker than the LT85 - so a much wider spread.

    Plus the side of the box has fitment for a standard truck PTO output, which are pretty cheap and easy to get.

    Oh, and you've got a choice to run a 24V starter (and alternator) which fires the motor so much easier than the 12V.

    I got my box (with a 4BD1) for $1500. A week later I saw one for condition unknown $250. Seems around $750 for a private buy is the going rate on these.
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  2. 22nd September 2010, 09:14 PM #72
    SheldonA Guest
    Just a little movie showing it all in. Starting from underneath at the clutch - to ending with a little drive.

    [ame="http://s1195.photobucket.com/albums/aa384/thegrubb1/?action=view&current=MyMovie.mp4"]MyMovie.mp4 video by thegrubb1 - Photobucket[/ame]
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  3. 22nd September 2010, 09:45 PM #73
    flagg's Avatar
    flagg
    flagg is offline YarnMaster Subscriber
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    Quote Originally Posted by the_grubb View Post
    Just buy anouther 110, you know you want to.....
    Gaah, I know!
    Hercules: 1986 110 Isuzu 3.9 (4BD1-T)
    Brutus: 1969 109 ExMil 2a FFT (loved and lost)
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  4. 25th September 2010, 11:43 AM #74
    SheldonA Guest
    Quote Originally Posted by the_grubb View Post

    I got my box (with a 4BD1) for $1500. A week later I saw one for condition unknown $250. Seems around $750 for a private buy is the going rate on these.
    Well just picked up another MSA-5G from a wrecker for $495. They have another one there if anyone is interested....
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  5. 25th September 2010, 11:55 AM #75
    Dougal
    Dougal is offline ForumSage
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    The MSA-5G I have is from an NPR250 with the 4BE1 engine. Do you guys know the history of yours?
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  6. 25th September 2010, 06:21 PM #76
    SheldonA Guest
    Quote Originally Posted by Dougal View Post
    The MSA-5G I have is from an NPR250 with the 4BE1 engine. Do you guys know the history of yours?
    The MSA-5G in my 110 was from an early (guessing '86) NPR with a 4BD1 and the one I got today was from the back of a 4BE1.
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  7. 26th September 2010, 07:57 AM #77
    Dougal
    Dougal is offline ForumSage
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    Quote Originally Posted by the_grubb View Post
    The MSA-5G in my 110 was from an early (guessing '86) NPR with a 4BD1 and the one I got today was from the back of a 4BE1.
    I found an 85 NPR owners/drivers manual the other day. The 85 4BD1 (weren't turbocharged that year) had the MSA-5P which is the same gearbox my 86 4BD1T originally came with.
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  8. 26th September 2010, 08:08 AM #78
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    rovercare
    rovercare is offline OldBushie
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    This looks to be an awseome conversion!, do you have more pics? how you made the shifterey bits, those gear ratio's are great.....wishing I didn't have 2 tapered roller LT95's to consume

    Nice work
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  9. 27th September 2010, 09:35 PM #79
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    Vern
    Vern is offline OldBushie
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    wish i'd never read this thread, your a bad man grubb, a very bad man
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  10. 28th September 2010, 06:18 AM #80
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    rick130
    rick130 is offline Moderator Gold Subscriber
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    Anyone know if the MYY 'boxes are the same output pattern as the MSA and is there much work to bolt the bell housing up to the 4BD1 ?

    I remember John/Bush65 saying that the six speed he has would foul the LT230 as I think it was the same length but wider than the five speed, but looking at this adapter that'd be a non issue, all else being equal.

    Excellent work mate.
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