Theres a passenger side rear end vibration when you accelerate from 80-86 at a constant rate, The vibration gets stronger and stronger and peaks at about 86-87mph. A quick jab from 80 to 86 or faster doesn't have the same vibration, the rear actually doesn't vibrate as hard. Would like some input on where this issue might be.
Hopefully the following can narrow down what might be happening
-car is lowered on mpp coils but is by no means slammed, about a 2 finger gap on all corners, has aftermarket rear swaybar, alignment was done after install ~-1.1-1.2 degrees of camber all around
-running EC7R wheels and 265/40/18 ps4s tires, tires have no foam, 42psi
-road force balancer on all wheels, wheels aren't bent
-have done multiple tire rotations, even tread wear all around
-torqued wheels to factory spec
The only clue I have right now is someone in FB group has mentioned the half shafts might be going bad. I find it unlikely, cars at 40k miles.
I'd rather not throw money at this problem buying parts I don't need as the solution is stay away from 86-87mph. The smartest thing to do might just be to take it to a SC but idk if they'd warranty whatever is wrong with the car since its modified, I do highly doubt these modifications will result in a rear vibration.
Hopefully the following can narrow down what might be happening
-car is lowered on mpp coils but is by no means slammed, about a 2 finger gap on all corners, has aftermarket rear swaybar, alignment was done after install ~-1.1-1.2 degrees of camber all around
-running EC7R wheels and 265/40/18 ps4s tires, tires have no foam, 42psi
-road force balancer on all wheels, wheels aren't bent
-have done multiple tire rotations, even tread wear all around
-torqued wheels to factory spec
The only clue I have right now is someone in FB group has mentioned the half shafts might be going bad. I find it unlikely, cars at 40k miles.
I'd rather not throw money at this problem buying parts I don't need as the solution is stay away from 86-87mph. The smartest thing to do might just be to take it to a SC but idk if they'd warranty whatever is wrong with the car since its modified, I do highly doubt these modifications will result in a rear vibration.
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