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09-04-2004, 01:02 AM | #1 |
Registered Member
Join Date: Jul 2004
Location: Victoria BC
Posts: 10
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vibration problem
The tires have been balanced and still have an odd vibration that seems to be worst when in 5th around 55/60 mph. It could probably be a number of things but has anyone experience this problem before?
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09-04-2004, 03:00 AM | #2 |
Smokes The Dope
Join Date: Aug 2004
Location: Eldorado, Illinois
Posts: 144
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Does it smooth out around 75? mine did i think that it was the idle arm or something. but it wasn't a big problem. later
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09-04-2004, 06:52 AM | #3 |
Registered Member
Join Date: Jun 2000
Location: Pigeon Forge Tn
Posts: 611
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Have you verified that its a wheel/tire problem as opposed to something else in the driveline?
To do this, take the car out and get it up to the same rpm that the vibration occurs at in 5th, but keep it in another gear, (i.e. 4th), if you dont have the vibration at the new speed, its the tires/suspension, if the car starts vibrating again in 4th, theres something wonky in the driveline. Hope this helps, J
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____________ '66 Mustang Coupe- AKA "Lenore" *on disability for a (long) bit* '93 GT Mostly stock AKA "Fawkes" Rice Haters Club Member #239 "I find your lack of faith...disturbing." "Every normal man must be tempted at times to spit on his hands, hoist the black flag, and begin to slit throats." H. L. Mencken |
09-04-2004, 06:38 PM | #4 |
Registered Member
Join Date: Mar 2004
Location: Long Island
Posts: 58
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could be the universal joints on the driveshaft.
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1990 Mustang GT Engine- 308 (bored .40 over) Probe Forged pistons (10.5:1), Scat forged crank and rods, w/Main Girdle, AFR 185 heads, GT-40 intake, CSI electric water pump. AC delete kit, No smog pump, Manual rack and pinion steering. Ignition- MSD 6AL, MSD Blaster coil, MSD hellicore wires. Drive Train- Tremic 3550, Alum. Drive shaft, 3:73 gears, Stock carrier and axels. 26X11.5 M/T Et streets. Power adder- 175 shot of laughing gas. Best ET 11.5 @120mph on squeeze, 12.4 @109mph on muscle (on gt40 heads) on the 185 heads ... ??? tba |
09-06-2004, 04:53 PM | #5 |
Registered Member
Join Date: Aug 2002
Location: Rochester
Posts: 553
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Its can be a number of things:
1. bent rim 2. balance 3. tire wear / bad tires / bald spot / etc 4. drive shaft bent or out of balance 5. u joints 6. suspension parts worn / shocks etc. most likely, ujoints bad drive shaft needs to be serviced.. get the aluminum drive shaft from summit. 149 bucks.. new joints and is so light weight you'll gain some performance and runs smoother from less centerhung wieight. |
09-10-2004, 05:12 AM | #6 |
Registered Member
Join Date: Jul 2004
Location: Victoria BC
Posts: 10
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thanks for all the response
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