!!HELP!! drive train vibration.

[merkurmike]

i have a 91 stang 5.0 5speed. has the normal bolt ons (cold air, intake, headers, and throttle body). it has a vibration coming from the drive train. it starts when the car is going 70+mph. engine rpms dont change the vibration. same with pressing the brakes/clutch. woundering if anyone can help pinpiont the problem. and or has had this problem before.

[DNeinstadt]

Tires.

I would get to 70 and shut off the motor in neutral, still hear the noise? If so, have tires balanced, you may have lost a wheel weight.

Go to Norm's tire!

Dan

[Odrapnew]

U-joints?

How fast is the vibration? Is it more of a buzzing speed(like a sub woofer), or a shake(like a wheel weight)?

[merkurmike]

no noise just vibration. tires were just put on so dont think its that. i have heard of people having odd vibrations and putting an after market drive shaft on and taking care of it.

[allstock93gt]

if the car has been lowered you may need to adjust pinion angle to fix this concern.

[merkurmike]

shaking. but it feels like its coming from the center of the car. you can feel it in the shifter. . o ya the trans was rebuilt about a year ago. so not that.its got me stumped

[merkurmike]

stock hight springs. no gears. good shocks.

[RNSF]

I second u joints

[allstock93gt]

see if you can borrow a different drive shaft and just swap it. unless you find you have a bad u-joint.

[DNeinstadt]

If you didn't have vibration before and you just put on new tires, I'd start there...

[Fosters]

see if you can borrow a different drive shaft and just swap it. unless you find you have a bad u-joint.

This. I had a messed up driveshaft do that, only mine did it from 85mph on up.

[289Notch]

wanna buy an aluminum driveshaft?

[Killer Capri]

its junk. give it to me.

[289Notch]

its junk. give it to me.

I throw the stock ones in the scrap pile. I may have one though.

[merkurmike]

just started and have had the tire for about 3 months.