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Thread: AR5 Trans Take Two: The Solstice Solution

  1. #21
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    Default Re: AR5 Trans Take Two: The Solstice Solution

    The next piece of the puzzle is the front bearing retainer. The Supra retainer allows you to run the GTE pull-type clutch and provides a surface for the throwout bearing to slide on. Again, it's a direct bolt-on to the AR5 case. Thus concludes what it takes to bolt the AR5 to the 7M with the supra clutch.

    Next is figuring out the shifter. As mentioned before, the Solstice has crazy mechanism to move the shifter back about 8 inches. This would put it in the glove box in a Supra. There are no off-the-shelf shifters that bolt to Aisin tailhousing and put the shifter in the normal location. A 2WD Colorado transmission may remedy this problem, but I think the shifter is too far forward. So I decided to mount the Supra shifter and housing to the Solstice tail.

    First the tail has to come off so you can mount the R154 shift rod actuator thing. See the attachment.
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  2. #22
    Grumpy Old Man
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    Default Re: AR5 Trans Take Two: The Solstice Solution

    LQ: Wonder if it uses the same sintered metal thrust washer as the 154?

  3. #23
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    Default Re: AR5 Trans Take Two: The Solstice Solution

    Next I had to cobble up a shifter housing using the Supra part and the Solstice base. This part allows me to use the bone-stock supra shifter in the exact location I want. Perfect.

    At first I was concerned about using the Supra shifter as opposed the Solstice shifter. I think many of us have noticed the notchy feel of the R154. However, looking at the R154 shifter vs the AR5 shifter, I can say that it's not the shifter...it's the transmission! The R154 shifter is actually a very nice piece.

    I can now shift the AR5 with the Supra shifter and it is like butter!
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  4. #24
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    Default Re: AR5 Trans Take Two: The Solstice Solution

    Quote Originally Posted by IJ.
    LQ: Wonder if it uses the same sintered metal thrust washer as the 154?
    Have we determined that it's sintered metal in the R154? I'll let you know if I break mine

  5. #25
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    Default Re: AR5 Trans Take Two: The Solstice Solution

    I think I read a test report over on Mk3 tech to that effect and it would explain the failures!

    Shifter mounts looks great well done !

  6. #26
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    Default Re: AR5 Trans Take Two: The Solstice Solution

    OMG Limequat your fast work is very impressive when do u belive its gona be on a supra running?

  7. #27
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    Default Re: AR5 Trans Take Two: The Solstice Solution

    Very nice! +1 for you! I'm a little concerned about the 225 lbs/ft tq limit, though.

    Yes, a .63 5th would be very nice, imho. The 7M has a lot more torque than most 6's of its same size. I ran around with a 3.42 rear and a .73, for a 2.49 - and I found that when I cruise on the highway, I was spinning more RPM than I like. A .63 on my 3.91s would be ideal, for me.

  8. #28
    Dr. Jeff Lange
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    Default Re: AR5 Trans Take Two: The Solstice Solution

    The R154 has a 254ft-lb limit. 225ft-lb isn't that far off, but it's a somewhat pointless number anyways, since it has no bearing on what the transmission can actually take.

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  9. #29
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    Default Re: AR5 Trans Take Two: The Solstice Solution

    Quote Originally Posted by Jeff Lange
    The R154 has a 254ft-lb limit. 225ft-lb isn't that far off, but it's a somewhat pointless number anyways, since it has no bearing on what the transmission can actually take.
    That's probobly the amount of torque that they expect the transmission to handle without breaking during its entire expected lifespan, rather than newly built with fresh oil.

    BTW... your contribution is greatly appreciated, lime

  10. #30
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    Default Re: AR5 Trans Take Two: The Solstice Solution

    Quote Originally Posted by supradan22
    OMG Limequat your fast work is very impressive when do u belive its gona be on a supra running?
    Heh, I wouldn't be documenting all this if I didn't already know the outcome.

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