6

I have a 68 Mustang 200 CID automatic

I have a vibration that I feel in the floor pan, that is only felt while under power. I looked under the car and found nothing loose.

Any ideas what could be causing this?

George
  • 6,605
  • 38
  • 86
  • 123
Ralph Mccormick
  • 61
  • 1

3 Answers3

1

If the driveshaft is out of balance the vibration is speed sensitive. However, if the U-joints are out of phase(running a different angles front and rear) the frequency will be speed sensitive while the amplitude will be power sensitive. A change in the differential orientation (lower for instance) affects phase.

TomO
  • 294
  • 1
  • 3
0

Your driveshaft could be out of balance. Get it looked it. If it breaks under load, you and your vehicle can receive serious damage.

Jonathan Musso
  • 4,740
  • 11
  • 30
  • 52
0

Look get under the car near the end of the trans: put you hand I the drive line try to push up-and-down and right and left . Then go to the rear end and put your hand on the driveline and do the same thing up and down and right and left : checking for dad bearings. I had a 67 v6

Rev.earl
  • 9
  • 3