1UZFE and A343F tranny

Discussion in '80-Series Tech' started by MikePL, Mar 30, 2013.

  1. MikePL

    MikePL

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    I am looking for many ways to keep the weight of my camper down, as well as the height of the engine (the 1FZ-FE is very tall).

    I am looking at the 1UZFE because is it cheap here (around $300), is very durable and delivers similar power. I assume that a bit less torque in low RPMs but once I press the pedal more it compensates.

    But anyway, I want to keep things simple and here is what follows:

    1. Will the 1UZFE mate with the A343F tranny?
    - probably the bellhousing is different so if I buy a A340 (Lexus LS400) bellhousing, will it bolt into the A343 tranny?

    2. Will the standard ECU from the Lexus LS400 interact well with the A343 tranny?

    I am really not planning to run standalone ECUs because of the transmission controller being integrated into the OEM ECU.
     
  2. azfj80pinal

    azfj80pinal

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    just resurrecting this thread as I would like to know this as well before I complete a a340e to a343f shaft swap
     
  3. alia176

    alia176

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    Didn't the 100 series landcruiser from '98-'02 have the 1UZFE mated to the A343F? I know they were 4sp trannies in the early years of the 100 series chassis.
     
  4. Eicca

    Eicca Professional Noob

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    Early 100-series had the A343F behind the 2UZ. I believe all of the UZ engines have the same bellhousing bolt pattern, but I could be wrong.
     
  5. alia176

    alia176

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    Wait a min, the OP said 1 UZFE, not 2 UZFE. Scratch my remarks since the 100 series never had the 1UZFE engine.
     
  6. Teza4

    Teza4

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    I have a 300+hp 1uzfe and thinking of putting it into a 105 so I am interested to see if it will bolt to A343F as well
     
  7. Kaninja

    Kaninja

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    Maybe in another 6 years we will know the answer to this age old question.......
     
    HDJdreams and baldilocks like this.
  8. baldilocks

    baldilocks Battle Ground, WA GOLD Star

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