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Aluminum/Carbon Fiber Driveshaft
- Thread starter MandoGt350R
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- Watchers 17
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MandoGt350R
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- #33
I agree darn it.
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MandoGt350R
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- #34
Mad, I just today I had my QA1 carbon fiber installed and response good. I did notice an increase in slight vibration. I only got up to 75 mph. Is it normal or did I miss another part that I need or installation method? Or is it just mme and the slight increase is normal?
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MandoGt350R
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- #37
Itās not too much, but not as smooth as stock for sure.
matthewr87
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Did you check your angles? Your transmission might have moved a touch during the MGW install. A tiny angle shift can induce vibration.
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MandoGt350R
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- #39
The shop did, Iāll have them check it. Is there a certain angle it has to be or dead center?
DrumReaper
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- 1971 429CJ Mach 1, 2012 Boss 302
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MandoGt350R
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- #41
Ok, I just sent him a message
Epiphany
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Hey Armando, it was great speaking to you on the phone about this. Before you take a look with the installer you may want to familiarize yourself with the thread install I did...
https://www.mustang6g.com/forums/threads/qa1-gt350-cf-driveshaft.89699/
Look at the install instructions from QA1 too...
https://www.qa1.net/assets/uploads/...guides/DS_MUSTANG_9919-210_REV_04-29-2019.pdf
Basically, ensure that:
- your shifter was installed correctly with all bolts torqued to spec
- your driveshaft was installed correctly with all bolts torqued to spec and color coding matched
- the transmission crossmember bolts are torqued to spec
- the transmission to crossmember bolts are torqued to spec
Consider rephasing the driveshaft 180* if all else fails and note any changes in the level of vibration as well as reinstalling the stock driveshaft to see if any vibration increase is coming from the shifter and not the driveshaft install.
Good luck.
https://www.mustang6g.com/forums/threads/qa1-gt350-cf-driveshaft.89699/
Look at the install instructions from QA1 too...
https://www.qa1.net/assets/uploads/...guides/DS_MUSTANG_9919-210_REV_04-29-2019.pdf
Basically, ensure that:
- your shifter was installed correctly with all bolts torqued to spec
- your driveshaft was installed correctly with all bolts torqued to spec and color coding matched
- the transmission crossmember bolts are torqued to spec
- the transmission to crossmember bolts are torqued to spec
Consider rephasing the driveshaft 180* if all else fails and note any changes in the level of vibration as well as reinstalling the stock driveshaft to see if any vibration increase is coming from the shifter and not the driveshaft install.
Good luck.
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MandoGt350R
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- #43
Nice talking to you too. I appreciate the advice and I will check all these items on Friday morning. Iāll get back with hopefully with everything fixed. Thanks again.
Dr. JL
Well-Known Member
The QA1 CF driveshaft is the single best and easiest improvement to the GT350R. No NVH and now no "bucking" in first gear while at parking lot speeds.
Epiphany
Well-Known Member
Talked to Armando today. While I don't know all the details he did mention that his car is all good after his mechanic went over the install again.
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