ok guys so i have a 05 track edition lowered on stance coilovers with 38mm and 25mm spacers. i have recently started having a vibration issue under acceleration. every time i get on it i get a vibrating/humming noise. it only happens when i really get on it or if im on the highway and accelerate. i have taken it to a shop and they looked at all the drivetrain and said nothing is wrong but it wasn't under load. does anyone have any ideas or experienced this before? this is annoying the hell out of me......

 

check tires, wheels, wheelbearings, etc.

 

all tires are brand new, wheels are rays engineering stock track wheels with not even a scratch, there is no play in bearings but how else can i check them?

 

How's your diff mount look? Subframe mounts? Sounds like you think its coming from the backside but vibrations are more pronounced up front

 

haven't had a chance to look at all the diff mounts but there is no silicone drip anywhere. the vibrations are not that bad but not normal

 

I would check tires too, flat spots or a wheel weight that fell off. kinda hard to diagnose such a problem online.

 

ya i know but thank you for ur help..... greatly appreciated

 

did you ever find out what the problem was? I have an 03 and it seems to e doing the same thing. ( I don't want to jack your thread or anything, but you know the search ***** are everywhere) Anyways, I notice mine happens really only in 2nd or 3rd (the only gears I accelerate hard in, which is rarely) and it happens right after I let off the gas... I don't give it anymore gas and after a few seconds it goes away. Is this the same issue that you were having with yours? if so did you remedy it, and how. Thanks

 

Hey man you ever figure out what the chatter issue was when you were in 2nd to 3rd? I'm having the same issue

 

Sound like wheel weight might be wrong. If it started after getting new tires? Or re-torque the lug nuts?