4th gear vibration
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Joined: Sep 2007
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4th gear vibration
I have a '97 1.8tqm with almost 145k on the clock. In the last couple months, its developed what feels like a driveline vibration in 4th gear at 55-65mph, 3k-4k rpm. No vibration above or below these parameters, or in other gears. Its not a steady vibration, its rhythmic - thrum..thrum..thrum. During this time, I've also done a bit to upgrade/tighten up my drivetrain :
AWE DTS
034 street density motor mounts
034 street density driver's side trans mount
RS4 pass side trans mount
Apikol rear diff mount
I searched and all I found was this:
"4th is the closest to a 1/1 ratio on your trans and so produces max power transfer. I think this may be causing the drive shaft to vibrate. It's something that can easily be checked. I've seen a few posts on the center bearing going bad."
So my question is, am I simply getting the vibration because I've tightened things up, or do I need to get my driveshaft or something in my driveline checked?
AWE DTS
034 street density motor mounts
034 street density driver's side trans mount
RS4 pass side trans mount
Apikol rear diff mount
I searched and all I found was this:
"4th is the closest to a 1/1 ratio on your trans and so produces max power transfer. I think this may be causing the drive shaft to vibrate. It's something that can easily be checked. I've seen a few posts on the center bearing going bad."
So my question is, am I simply getting the vibration because I've tightened things up, or do I need to get my driveshaft or something in my driveline checked?
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