vibration issues
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Teching In
Joined: Oct 2014
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vibration issues I have a 2000 Z28 with a bone stock suspension 80000 original miles. I recently got nitto 555s 275/45 17s had them balanced and re balanced and re balanced again. I have also replaced my clutch and flywheel for a spec 3 and alum fly. All break in was done correctly. My issue happens between 75 and 90mph not a terrible vibration but it's there. I'm wondering if my suspension is shot or if I need my driveshaft balanced because of the clutch and flywheel mods. I've been back to the tire place and they are balanced properly I have watched them do it 2 of the three times. What have you guys noticed when suspension components go bad? I know the stock decarbons are **** I've searched the forums and found that plenty of times I'm just looking to pinpoint the symptoms.
TECH Senior Member
Joined: Jan 2004
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From: St.Charles MO
I have a 2000 Z28 with a bone stock suspension 80000 original miles. I recently got nitto 555s 275/45 17s had them balanced and re balanced and re balanced again. I have also replaced my clutch and flywheel for a spec 3 and alum fly. All break in was done correctly. My issue happens between 75 and 90mph not a terrible vibration but it's there. I'm wondering if my suspension is shot or if I need my driveshaft balanced because of the clutch and flywheel mods. I've been back to the tire place and they are balanced properly I have watched them do it 2 of the three times. What have you guys noticed when suspension components go bad? I know the stock decarbons are **** I've searched the forums and found that plenty of times I'm just looking to pinpoint the symptoms.
Does it stop after 90mph?
Where does it really feel like its coming from? Front(can you feel it in the steering wheel)? back? Feel it in the shifter/trans tunnel?
Does it change at all depending on what gear you are in at those speeds?
also have you tried a DIFFERENT tire shop, I had a tire shop I trusted for a solid decade balance the tires on my bird and was chasing a vibration for a while after that till I went to another tire shop (that is a one man operation) and watched them on his balancer and 2 or 3 of the tires where further out of balance then they where with NO WEIGHTS on them and one or 2 where spot on and all 4 had been balanced by the same guy on the same machine at the first shop.
Thread Starter
Teching In
Joined: Oct 2014
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I feel it solely in the rear. A little in the steering wheel and I can visibly see the passenger seat shaking it does kinda just fade out around 90 though and below 75 non existant. Another forum told me to get my driveshaft balanced?
it's probably a bad tire...do you see excessive amount of balancing weights on the passenger side rear wheel? Tire shops do not give a ****, they will throw a pound of lead on a wheel.
I just recently had to send back a brand new MT drag radial because it took almost 10oz to balance, but the weights would not clear the caliper. The replacement only need 1/4oz to balance.
I just recently had to send back a brand new MT drag radial because it took almost 10oz to balance, but the weights would not clear the caliper. The replacement only need 1/4oz to balance.
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Thread Starter
Teching In
Joined: Oct 2014
Posts: 13
Likes: 0
it's probably a bad tire...do you see excessive amount of balancing weights on the passenger side rear wheel? Tire shops do not give a ****, they will throw a pound of lead on a wheel.
I just recently had to send back a brand new MT drag radial because it took almost 10oz to balance, but the weights would not clear the caliper. The replacement only need 1/4oz to balance.
I just recently had to send back a brand new MT drag radial because it took almost 10oz to balance, but the weights would not clear the caliper. The replacement only need 1/4oz to balance.
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