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Thread: Corona gearbox and IS300 gearbox are they the same??

  1. #1
    Toymods member no 341 Domestic Engineer amichie's Avatar
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    Default Corona gearbox and IS300 gearbox are they the same??

    I read on the web that the both the corona and the lexus IS300 both use the toyota w55 gearbox. This sounds a bit hard to believe since the IS300 puts out considerably more power than the old 2litre corona. Can anybody shed any light on this topic???

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    Current UZA80 owner Chief Engine Builder JustCallMeOrlando's Avatar
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    Default Re: Corona gearbox and IS300 gearbox are they the same??

    The Lexus IS300 was only available with an auto, so no.

    That said, the same 2JZGE engine was available with the W58 in the Mk4 Supra, which is the same "family" of boxes are the W55. The W55 was from what I gather, never used in that application though.
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    Toymods Pimp Chief Engine Builder Norbie's Avatar
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    Default Re: Corona gearbox and IS300 gearbox are they the same??

    The IS300 is available as a manual in the US, and yes it is a W55. It is the "update" version of the W55 though, so there are a few differences compared to the W55 in an old Corona. The core of the box is still very similar though.

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    Current UZA80 owner Chief Engine Builder JustCallMeOrlando's Avatar
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    Default Re: Corona gearbox and IS300 gearbox are they the same??

    Holy crap! That's nuts!?
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    Junior Member Too Much Toyota
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    Default Re: Corona gearbox and IS300 gearbox are they the same??

    fwiw: W55 behind a 1jzgte is a bit of a fuel waster - but good for 1st gear skids... just ask wilbo

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    Car Butcher Carport Converter WDE_BDY's Avatar
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    Default Re: Corona gearbox and IS300 gearbox are they the same??

    Quote Originally Posted by Norbie
    The IS300 is available as a manual in the US, and yes it is a W55. It is the "update" version of the W55 though, so there are a few differences compared to the W55 in an old Corona. The core of the box is still very similar though.
    So does that mean its effectively a "big bearing" later type W58 with the 55 ratios?

    Callum

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    Is a Chief Engine Builder wilbo666's Avatar
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    Default Re: Corona gearbox and IS300 gearbox are they the same??

    Quote Originally Posted by WDE_BDY
    So does that mean its effectively a "big bearing" later type W58 with the 55 ratios?

    Callum
    I have a steel plate W55...and I compared it to Norbies broken ex 2JZ-GE W58 and the bearings were the same (larger than alloy plate) so that would appear so!

    (ps fuel ecconomy was still tops with a W55 )

    Cheers
    Wilbo

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    Toymods member no 341 Domestic Engineer amichie's Avatar
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    Default Re: Corona gearbox and IS300 gearbox are they the same??

    Quote Originally Posted by Norbie
    The IS300 is available as a manual in the US, and yes it is a W55. It is the "update" version of the W55 though, so there are a few differences compared to the W55 in an old Corona. The core of the box is still very similar though.

    Thanks for that Norbie.

    So do you think that the corona version of the w55 will handle a humble , head gasket blowing, NA 7mge engine??

  9. #9
    Toymods V8 Member Too Much Toyota CrUZida's Avatar
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    Default Re: Corona gearbox and IS300 gearbox are they the same??

    Norbie is correct.
    Friend in USA owned an IS300 with W55.
    He was pissed off to find a W55 and not a W58.

    But the old W55 will be fine behind 7MGE
    Peewee
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    Rest in Peace Conversion King ViPeR_NiPPleX's Avatar
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    Default Re: Corona gearbox and IS300 gearbox are they the same??

    im trying to think, what is more valuable. An alloy plate w58, or a steel plate w55? one is stronger than the other, yet one has better overall ratios...

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    Is a Chief Engine Builder wilbo666's Avatar
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    Default Re: Corona gearbox and IS300 gearbox are they the same??

    Quote Originally Posted by ViPeR_NiPPleX
    im trying to think, what is more valuable. An alloy plate w58, or a steel plate w55? one is stronger than the other, yet one has better overall ratios...
    That was the exact delima I was faced with not long ago...I was having clutch issues and had my steel plate W55 out of the car (I didn't know that it was a W55 when I put it in the car).

    I had a spare alloy plate W58 (ex 7mge MA70). I ended up putting in the Alloy plate W58 in purely for the ratios (the steel plate W55 is in better condition that the W58). I did find the W58 ratios to be quite a bit better.

    The 1JZ hasn't munched the W58 yet.

    Cheers
    Wilbo

  12. #12
    Toymods V8 Member Too Much Toyota CrUZida's Avatar
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    Default Re: Corona gearbox and IS300 gearbox are they the same??

    W55 has ghey 1st and 2nd

    nuff said.
    Peewee
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    Junior Member Too Much Toyota RONA's Avatar
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    Default Re: Corona gearbox and IS300 gearbox are they the same??

    ratios aren't that bad, plus u have to remember the cars it comes equipped in have taller diff ratios and hence even out the shorter first and second gears.
    If in doubt power out

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    Current UZA80 owner Chief Engine Builder JustCallMeOrlando's Avatar
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    Default Re: Corona gearbox and IS300 gearbox are they the same??

    Ghey relative to normal diff ratios...
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    Rest in Peace Conversion King ViPeR_NiPPleX's Avatar
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    Default Re: Corona gearbox and IS300 gearbox are they the same??

    hmm, yeah id be going with the alloy w58, unless it was rooted.

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