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Discussion Starter #1
I recently had my r154 transmission rebuilt by Driftmotion in Cali, which was highly recommended by other supra owners. The entire experience was a mess, and I was left unhappy about the results. Now, 4 months after the transmissions install it drives much worse then prior to being rebuilt. Problems that I did not experience before hand are now happening, and when I spoke with Driftmotion regarding a repair they were quick to dismiss any warranty work, claiming that they would charge for parts and labor to fix it. Anyone else have problems similar to this with Driftmotion?
 

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So prior to getting rebuilt it was just sloppy. Shifts felt loose as well as the shifter. After driftmotions "rebuild" it did feel much tighter for approximately 4-600 miles. Now I have a complete 4th gear pop-out issue, which I never had before. Put the car into 4th give it some throttle and "pop" right into neutral. This is a tranny that I did not beat on at all during its break in period. I called Aaron and he dismissed my issues claiming that I must have beat on its and that I would need to pay shipping to them in order for them to fix it at a cost to me. Totally unacceptable.
 

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Discussion Starter #4
So prior to getting rebuilt it was just sloppy. Shifts felt loose as well as the shifter. After driftmotions "rebuild" it did feel much tighter for approximately 4-600 miles. Now I have a complete 4th gear pop-out issue, which I never had before. Put the car into 4th give it some throttle and "pop" right into neutral. This is a tranny that I did not beat on at all during its break in period. I called Aaron and he dismissed my issues claiming that I must have beat on its and that I would need to pay shipping to them in order for them to fix it at a cost to me. Totally unacceptable.

Currently the transmission has 640 miles on it and it is undriveable.
 

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That isnt good at all :(

From what you have said, it doesnt seem right for Aaron to have that attitude. Did he say what he believed would be the likely culprit?

Do you have any other transmission specialists in your area that you could go to, for a second opinion?
 

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PM sent

Edit: Nevermind, I can't figure out how to send a private message on this new platform. Aaron says give him a call on his personal cell. 909-753-73 eight five
 

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Discussion Starter #7
To be fair, I never said Aaron gave me an attitude. He dismissed any error on his shops part, even without seeing it. He has never given me an attitude, but I have spoken with him several times and got nowhere. It is sad that I spent so much money on a rebuild that went so wrong. My solution now is to dump another $8,000 on a grannis t56 which I plan to do now.

There is a very good transmission shop locally that is going to check out the trans hopefully today prior to pulling it out. I will report what they say.

Again I am not trying to bash anyone, but this is so aggravating, especially for a shop so many people recommend.
 

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Discussion Starter #8
Yesterday I was able to take the car to the transmission shop for them to test drive the supra. They concluded that the issue is definitely internal in nature, and requires the tranny to come out for servicing. My hope that this was related to any kind of shifter issue was quickly shot down.
 

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Last R154 that I had do this had a slightly bent shift fork.

May or may not be your issue but I do agree with it being an internal issue.

No advise on the Driftmotion issue but if you do end up having your local shop tear the tranny apart I would definitely recommend reaching out to Aaron with the findings. He's always been reasonable in my experiences.
 

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Agreed ^

My dealings with Aaron were good when I bought plenty of parts to rebuild my R154 about 7 or 8 years ago, and to my knowledge, he has always been respected by the Supra community too.

GL with the inspection, I hope it is nothing major.
 

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Aaron has provided R154 rebuild service to the community for like 15+ years. Not only that but he consistently stocks all the parts to maintain and support these transmissions. Hundreds (if not thousands) of R154 trans have gone through the door of Driftmotion, whether it be brand new in box from Aisin or fully built high horsepower capable transmissions with top notch Marlin Crawler internals. In that amount of time and number of transmissions there have been a less than 1% amount of complaints. Of those complaints the reason for error was attributed to improper clutch installation, improper break in procedure, wrong fluid, (no fluid lol), low fluid etc etc. You count on one hand the amount of times a failure was actually caused by the rebuild process or components itself. I am absolutely not saying the rebuild is not at fault here. I am saying Aaron has gone out of his way for years to provide this service to the community and he would never have a single intention to just let this go. He would work with you on this whatever the circumstance and I provided his personal cell phone number to you. Even if you want your local trans guy to check it out I would still suggest you call him.
 

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I don't know Aaron or DriftMotion but I feel like it'd be good for him to come on here and talk about the issue since it's in the public's face now.

Any updates from the OP?
 

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Be sure to replace the plastic cap the tip of the shifter and the green truck grommet that goes underneath the ball part of the shifter. I bought their bearing and thrust plate kit and did the work myself. The problem I was having was downshifting into 2nd going into a corner turn. Now that's better, but R154's were always notchy. Use Redline MT 90 oil.
 

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I'll also vouch for Aaron and the folks at DM, have done a fair bit of business with them over the years and they've treated me right. On that note OP, I'd also recommend communicating with Aaron whatever you may find.

You have my sympathy, have had my share of transmission woes over the years as well.
 

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Discussion Starter #18
I understand many people on here have had a good experience with him but I have not. Aaron just makes comments just like Patric94TT listed above (yes, again I do understand that these problems occur - but I am not new to this work, and did a proper break-in without beating on the tranny) I've spoken with Aaron numerous times (on his cell), even sending him requested pictures over text. He FORGETS everything, and never takes the time to pull the build sheet for his work. Every time I speak with him is like the 1st time - VERY UNORGANIZED business practice. I honestly would never send anything back to him, especially due to the shipping charges associated with the transmission. I cannot afford to lay out $3,000+ for his rebuild, plus $400 shipping round trip only to have to return it for another $400 a few months later. All of that with his "non-warranty/not our fault" disclaimer.

I have used several rebuild transmission services since the early 2000's, Team Rip, Shep Trans, Jacks Transmissions - all were better than Driftmotion. The attention to detail was not up to par with these company's, (which unfortunately do not service the Supra community). I'm going to nit-pick but as soon as I received my parts back from Driftmotion I knew they were not the high-end shop people claim them to be. My transmission case and rear end looked like total garbage. When you use the company's listed above, they all clean and paint the cases. Transmissions, transfer cases and rear ends come back rebuilt, cleaned and painted. Driftmotion claimed to "cleaned" them, but failed to paint the pumpkin of the rear, or remove spraypaint overspray that was on my transmission from the previous owner. Rebuilt parts should look like rebuilt parts, not junkyard picks. Its going to be a hard sell to even unload these parts now, considering how poorly they were returned. Nobody would even believe these parts were serviced. '

To top it off, when I sent in my transmission and driveshaft I included parts that, as per Aaron were not necessary to return for servicing. Best part - they were never returned! Staff denied seeing the parts and I was forced to purchase 3 parts (2 transmission and 1 driveshaft) over again just to put my Supra back together. Once again, unprofessional and unorganized business.

I will post the findings of the transmission issues once the transmision shop opens it up. Thanks for all of the feedback regarding this stressful situation.
 
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