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Thread: R series transmission compatibility

  1. #1
    Forum Member 1st year Apprentice
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    Default R series transmission compatibility

    I have a 2008 Hilux 2wd with a R150 gearbox, Its a 2-tr-fe 4 cylinder(looking to turbo it)
    Basically the gear ratios suck.
    Would the R154 out of a later model supra bolt onto the same housing or motor??
    As that has a much better spread of gears.

    I can't seem to find and info on whether or not would have similar or the same bolt patterns.

    Thanks Josh

  2. #2
    Junior Member Too Much Toyota dnegative's Avatar
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    Default Re: R series transmission compatibility

    Maybe;
    It will bolt to your bellhousing but R150's have two different input shaft lengths, 160mm/190mm but yours being a late model, would say its 190mm.

    Make sure you buy a r154, seen a few people (and shops) selling late model R150's as R154's and charging 3x the price.

  3. #3
    Junior Member Backyard Mechanic
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    Default Re: R series transmission compatibility

    Is anyone able to confirm 2005 on wards 2tr R150 input shaft is 190mm?

    P.S i cant seem to find any useful information

  4. #4
    Junior Member Grease Monkey
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    Default Re: R series transmission compatibility

    Nope sorry, i have had both 2WD r150 (2tr) and r151 (1kd) and they are the short input shafts 160mm. however i am unsure what the r150 from the 1gr (v6 petrol) has, its a different part number for the input shaft so i suspect its longer so the heads clear the the firewall maybe? dont know, not many for sale and when they were for sale none of the wreckers would measure it for me haha

  5. #5
    Junior Member Backyard Mechanic
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    Default Re: R series transmission compatibility

    Phew I almost bought one. Looking online it seems 1gr and 2tr have the ratios. I also can't get anyone to confirm the 1gr shaft length. Everyone on the interweb thinks it's 190mm.

    Can you confirm it ratios are the same, which means input shaft could be swappable

    Thanks

    Sent from my SM-A530F using Tapatalk

  6. #6
    Junior Member Grease Monkey
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    Default Re: R series transmission compatibility

    well going by the part numbers on toyodiy, the 2tr r150 and the 1gr r150 box has the same lay shaft, so id say yes the input shaft could be changed

  7. #7
    Cressidaspert Carport Converter andrew_mx83's Avatar
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    Default Re: R series transmission compatibility

    They changed the helix angles on the gears at some point so you can't just swap them Willy nilly, but yes you can swap from a short to a long input or vice versa, providing you've done your homework and everything meshes up
    There is no substitute for PUBIC inches

    Never late in an x8

  8. #8
    Junior Member Grease Monkey
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    Default Re: R series transmission compatibility

    Well thats sneaky haha, is that for the early and late 154s or just r series boxes in general?

  9. #9
    Cressidaspert Carport Converter andrew_mx83's Avatar
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    Default Re: R series transmission compatibility

    Not too sure mate, my research was based around the r150

  10. #10
    Junior Member Grease Monkey
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    Default Re: R series transmission compatibility

    Fair enough, something to keep a eye on, they have build the r150 all the way through from the 80s didnt they? so maybe they have a early and late version

  11. #11
    Junior Member Backyard Mechanic
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    Default Re: R series transmission compatibility






    I've wanted to post these images for while now, but always forgot where I had these stored.

    I hold it helps to identify what we have here in the USA as transmissions and which vehicles they came in...
    Last edited by 73GTV; 02-11-2019 at 01:38 AM.

  12. #12
    Junior Member Backyard Mechanic
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    Default Re: R series transmission compatibility





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