Vibration when I accelerate... driveshaft?
#1
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Car: 2002 SOM z28
Engine: LS1
Transmission: T-56
Vibration when I accelerate... driveshaft?
The driveshaft is about the only thing I haven't replaced, so it is still the stock iron one that came with the 84.
I have noticed that when I floor it, I get a vibration which is more noticable at the higher mphs. Is this a sign of an unbalanced driveshaft?
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1984 z28 w/ a 357 cu in. monster engine which is looking like the posterchild for Edelbrock with the exception of the Holley 750vac... all the suspension stuff... 9-bolt posi disk is in...
-=ICON Motorsports=-
I have noticed that when I floor it, I get a vibration which is more noticable at the higher mphs. Is this a sign of an unbalanced driveshaft?
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1984 z28 w/ a 357 cu in. monster engine which is looking like the posterchild for Edelbrock with the exception of the Holley 750vac... all the suspension stuff... 9-bolt posi disk is in...
-=ICON Motorsports=-
#2
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Car: 1991 Z-28
Engine: 350
Transmission: TH700
don't know if this helps,last month I replaced both u-joints,two weeks later I replaced the transmission mount with a poly one. I noticed a vibration around 2000 rpm and higher. I checked everything, took off the driveshaft to grease the u-joints even more. I noticed just behind the yoke there are two very thin disks, one disk didn't go around all the way, I thaught it might be a small weight , to make things short, I turned the driveshaft where the the weight tabs are the oppisite side, no more vibration
#3
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Car: Take
Engine: Your
Transmission: Pick
Usually when you have driveshaft imbalance, or tire imbalance, it happens w/ speed, regardless of accel or decel.
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If you live in Southeastern US, check us out!
South East Thirdgen
GM Master Tech
ASE Master Tech + L1
Savannah, GA
'87 Trans Am
S/D TPI retrofit including functional PassKey,
22# injectors,
Whatever chip I feel like burning,
JET AFPR, Ported Plenum,
TB Coolant Bypass, Custom Cold Air,
SSM SFC, KYB Shocks, Boxed LCAs, Wonder Bar,
8mm Accel wires,
Flowmaster Exhaust,
16" GTA rims,
Corvette Servo,
-->14.97 @ 94.9 MPH<--
'97 Bonneville SSE
#4
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Car: 4
Engine: 6
Transmission: 5
Is the vibration correlated to engine RPM, or to car speed?
If it's engine RPM, look at the flywheel, balancer, accessories on the front of the motor, etc.
If it's car speed (take the car out of gear and coast and it's still there) look at driveline stuff.
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"So many Mustangs, so little time..."
ICON Motorsports
If it's engine RPM, look at the flywheel, balancer, accessories on the front of the motor, etc.
If it's car speed (take the car out of gear and coast and it's still there) look at driveline stuff.
------------------
"So many Mustangs, so little time..."
ICON Motorsports
#5
TGO Supporter
sounds like the vibration i chased in my iroc and could never find or fix. finially got a new set of t/a radials for the back and found 2 quarts of water and mud inside the tire, vibration all gone now.
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