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Old 03-21-2013, 04:53 PM   #1
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Same problem after alignment

So I lowered my stang about 3 weeks ago, I let it settle and when going over 40 it began vibrating bad so I figured alignment. Got it done today and it still shakes but not as bad and now at around 55 and over. What else could the problem? My friend said it could be the driveshaft. Thanks for any input
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Old 03-21-2013, 04:57 PM   #2
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So I lowered my stang about 3 weeks ago, I let it settle and when going over 40 it began vibrating bad so I figured alignment. Got it done today and it still shakes but not as bad and now at around 55 and over. What else could the problem? My friend said it could be the driveshaft. Thanks for any input
Is your steering wheel vibrating badly?
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Old 03-21-2013, 05:01 PM   #3
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As stated above, try to give us more details on the vibration. Is it coming through the steering wheel directly or more through the whole body?

There's a good chance the vibration is caused from a poor driveshaft angle. When you lower the ride height, you lose a good bit of the angle, depending on how low the springs are. Without the proper angle, you'll feel extreme vibrations through the whole body of the car, coming from the driveshaft.

Hope this helps some!

Shane
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Old 03-21-2013, 05:03 PM   #4
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So I lowered my stang about 3 weeks ago, I let it settle and when going over 40 it began vibrating bad so I figured alignment. Got it done today and it still shakes but not as bad and now at around 55 and over. What else could the problem? My friend said it could be the driveshaft. Thanks for any input
Do the tires need to be balanced?
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Old 03-21-2013, 05:03 PM   #5
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It definately feels as if its coming from the rear, the whole car vibrates bad like its massaging my back. It's so annoying
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Old 03-21-2013, 05:03 PM   #6
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Do the tires need to be balanced?
I didn't get them balanced, should I?
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Old 03-21-2013, 05:04 PM   #7
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I didn't get them balanced, should I?
You definitely should get them balanced.
That's my best guess since it's coming from the rear.
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Old 03-21-2013, 05:05 PM   #8
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I didn't get them balanced, should I?
Idk, Shanes answer sounds more likely.
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Old 03-21-2013, 05:07 PM   #9
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Ima put the car in the air right now and see
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Old 03-21-2013, 05:17 PM   #10
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Ima put the car in the air right now and see
I hope you figure it out, I'd hate for you to miss the autocross. If it is too low, do you have any isolators hanging around? They could help raise you up a bit.
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Old 03-21-2013, 05:21 PM   #11
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Yea me too hopefully I do, it's not too low, it sits just as high as when I had the gt
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Old 03-21-2013, 06:44 PM   #12
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Did you see any obvious problems when you had your car up in the air?
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Old 03-21-2013, 07:15 PM   #13
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Nope that's the weird part about it, but for sure I will have it ready to go on sun
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Old 03-21-2013, 07:42 PM   #14
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I had the same issue... Had 3 different shops balance my tires and check my entire suspension to see if I was maybe missing something... Turned out one of my rims had gotten bent slightly. Everytime they balanced my wheels, it came back just at a different speed until I replaced my rims. Drove me crazy...
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Old 03-21-2013, 07:48 PM   #15
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Hmm thanks for you're input, I will take that into consideration.
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Old 03-21-2013, 08:28 PM   #16
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Nope that's the weird part about it, but for sure I will have it ready to go on sun
Good luck on finding the problem, I can't wait till Sunday!
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Old 03-21-2013, 08:41 PM   #17
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Hmm thanks for you're input, I will take that into consideration.
If you take them to get balanced ask to get them Road Force balanced. It will find any bent parts and will give you a more accurate balance.
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Old 03-21-2013, 08:52 PM   #18
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Mine started right after I lowered mine with the H&R SS springs and the MM caster camber kit. While I was at it, I replaced my shocks and struts also. I went crazy for months, chasing everything down... I finally told my wife that I was sick of the vibration and I was ordering new rims and tires and if that didnt fix the problem, I was getting rid of the car. lol...

Yeah, if you get a road force balance, you should also get a printout that will show you everything.

BTW if it's in the steering wheel, it's from the front, and if it's in the seat, it's usually from the rear. Mine was bad in the steering wheel and my front driver side rim was the one that was bent.

Good luck.
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Old 03-21-2013, 08:57 PM   #19
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When you lowered the car did you change out anything else are just the springs? When I lowered mine I changed the tire rod ends and lower ball joints as well.
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Old 03-21-2013, 09:17 PM   #20
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Nope just springs, i already have cc plates on it. But yea it's definately from the rear
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Old 03-21-2013, 09:22 PM   #21
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I had the same problem but not cause i lowered it it was just shaking it ended up that left side on the rear axel was bad put in a new one no more shaking
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Old 03-21-2013, 09:24 PM   #22
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I checked out the shaft and looked normal. My friend will take a look at the suspension on sat so I can have the car ready for the track on sun
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Old 03-21-2013, 09:49 PM   #23
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I checked out the shaft and looked normal. My friend will take a look at the suspension on sat so I can have the car ready for the track on sun
Be sure to go early, I'm sure there will be a good turn out!
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Old 03-22-2013, 02:36 AM   #24
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Will do and have more fiends that will be coming along!
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Old 03-22-2013, 03:17 AM   #25
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So when you got your car aligned the vibration changed. Do you have any adjustments for rear alignment or did they just align the front?

If that's the case get all for wheels balanced before you spend any money on a driveshaft. I've got a hunch it's the wheels.
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Old 03-22-2013, 07:31 AM   #26
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So when you got your car aligned the vibration changed. Do you have any adjustments for rear alignment or did they just align the front?

If that's the case get all for wheels balanced before you spend any money on a driveshaft. I've got a hunch it's the wheels.
Rear alignment cant be done since its a solid rear.....well it can with shim plates however that is a whole can of worms in itself if u need adjustment on a solid rear axle
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Old 03-22-2013, 07:38 AM   #27
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Get tires balanced XD
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Old 03-22-2013, 07:52 AM   #28
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Rear alignment cant be done since its a solid rear.....well it can with shim plates however that is a whole can of worms in itself if u need adjustment on a solid rear axle
He has IRS.
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Old 03-22-2013, 12:39 PM   #29
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Will do and have more fiends that will be coming along!
Nice! I just have a friend riding there with me, but no one coming to drive. What kind of cars will be coming with you? I'm guessing the Acura and 350z, any others?
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Old 03-22-2013, 12:46 PM   #30
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He has IRS.
Aha diff story then
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Old 03-22-2013, 12:53 PM   #31
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So when you got your car aligned the vibration changed. Do you have any adjustments for rear alignment or did they just align the front?

If that's the case get all for wheels balanced before you spend any money on a driveshaft. I've got a hunch it's the wheels.
Yea it's still bad but now after like 55 mph when before the alignment it was above 40mph. Yes they were able to adjust the rear since I have the IRS. Ok ima go do that today then and hopefully that works.
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Old 03-22-2013, 12:54 PM   #32
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Nice! I just have a friend riding there with me, but no one coming to drive. What kind of cars will be coming with you? I'm guessing the Acura and 350z, any others?
An integra, the 350 a 335 and a brand new sti
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Old 03-22-2013, 01:26 PM   #33
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An integra, the 350 a 335 and a brand new sti
Nice! Are the drivers of the 335 and STi going to autocross? And how good of drivers are they?
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Old 03-22-2013, 01:36 PM   #34
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Nice! Are the drivers of the 335 and STi going to autocross? And how good of drivers are they?
They are just as novice as when we were there for the first time. They Subaru owner just got the car like 2 weeks ago and just began to drive stick at the same time lol
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Old 03-22-2013, 01:56 PM   #35
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They are just as novice as when we were there for the first time. They Subaru owner just got the car like 2 weeks ago and just began to drive stick at the same time lol
I'm sure they will catch on quickly, and being that they are fast cars, they should be good competition. I just hope the driver of the STi doesn't smoke his clutch too badly. Is it a coupe or hatchback?
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