1985 Mustang shakes at 55mph to 70mph

[85beast]

Its weird its only wen i hit the gas and the pedal shakes idk wat it is i got the tires align balanced and reseal like a month ago any suggestions?

[87ragtop]

I'm sorry...are you saying that just the gas pedal shakes or is the front end of the car shaking??

[greenscobie86]

Driveshaft out of balance?

Sometimes if the d/s wasn't "indexed' when it was removed it will vibrate after it is put back on... You could try moving the d/s on the yoke to see if the vibration stops. Might be a little annoying but its worth a shot.

[Zer0 T]

Beat me to it...

I would also say possible drive shaft problem, or perhaps U-joint.

[greenscobie86]

^
Good point on the u-joint.


That rhymed lol.

[85beast]

I got the u joint replace like 2 months ago so idk if its that

[BlueBaby06]

I have had a vibration problem on my 06 since june.its been to the dealer 5 times and now they say it is the exhaust and they can,t do any thing with it.I took it to my own mechanic and he said the same thing exhaust vibration,its not hitting any thing,but it vibrates.

[Hotshot]

Originally Posted by 85beast

I got the u joint replace like 2 months ago so idk if its that

still worth climbing under there to see how it looks

[85beast]

Also joey ts did it so idk i it really was fixed so hhow muxh would a u joint be

[KingFlirt1]

if it was the u joint it would have made a clinking noise when you put it in gear.