GS - 3rd Gen (2006-2011) Discussion about the 2006+ model GS300, GS350, GS430, GS450H and GS460

07 350 transmisson awd

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Old 09-20-12, 05:47 AM
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07LEXPL
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Default 07 350 transmisson awd

Quick question, has anyone had this happen. When I drive on the highway, I'm going about 60, 70 when I let go of the gas and coast it feels like the car is vibrating. Not sure if it's the tranny or something else. I can't tell if it's the rear or front of the car. I have staggered rims but tires are perfect diameter. Plus I'm lowered on nf210. Any input or testing I should do is appreciated. Thanks.
Old 09-20-12, 06:28 AM
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welcome to the club!
Old 09-20-12, 06:57 AM
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07LEXPL
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So this is normal? The funny thing is that I was a little scared about the awd wobble but I dent have that issue. Just this slowing down Jake break like vibration.
Old 09-20-12, 07:09 AM
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the AWD is known to vibrate with or without lowering. if it only happens when your braking though, it could be a warped rotor
Old 09-20-12, 07:31 AM
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07LEXPL
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Hmm Ya I'm due for brakes. But it only happens when no brakes or gas pedals are touched. Just coasting slowing down. Very weird.
Old 09-20-12, 07:55 AM
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when's the last time you had the tires balanced?
i had some slight vibrations coasting at highway speeds and it turns out my tires were slightly off-balance.
problem went away after the balancing was done.
Old 09-20-12, 08:42 AM
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does it only happen around those speeds? you said you have aftermarket wheels, did you just put them on? do you have hub rings for the wheels?
Old 09-20-12, 08:42 AM
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07LEXPL
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Wheels are balanced. Its not that. It only happens when I let go of the gas and let the car slow down on its own. When I give it even the slightest touch of gas it's fine.
Old 09-20-12, 08:44 AM
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Hub rings are installed. It happens at 30 and up. It started doing this after a month after installing the rims.
Old 09-20-12, 08:45 AM
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well at least you can narrow it down to what it could be. dumb question but are all the lugs tight?
Old 09-20-12, 08:50 AM
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07LEXPL
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Ya this weekend I will check the rims again. Install new brakes. I'm just hoping it's not the tranny or differential from the rims. That would suck.
Old 09-20-12, 09:11 AM
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doubt it. i wouldnt be surprised if the wheels were not balanced properly.
Old 09-20-12, 09:15 AM
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07LEXPL
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But wouldn't it vibrate all the time not just when decelerating. But Ya I keep you guys updated after I get it done.
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