Ian67

My 67 mustang is making a wierd thumping noise. It starts about 25 mph a verys a little bit but you can still hear a distinct thump even at 70 mph, sounds like it is more toward the front. It's not real loud but it sounds like hitting you're knuckles on the floor pan. I can't find anything out of place or loose. I am pretty sure it is wheel related cause you can take the car out of gear at speed (5speed) and thump doesn't change. I've checked tires to see if they had something in them, alignment, checked rotors and seem fine. It's front disc rear drum if that matters

I'm completely stumped, has anyone had this issue or similar. I had a wheel bearing fail not long ago and replaced rotor and bearings on that side, only thing I can come up with is other side going bad, but I've checked and I can't find anything wrong.

88 orangepeel notch

If the thump sound is consistent/relative with speed, then it's definitely a tire/wheel issue. Did you closely inspect each tire for a broken cord or other internal damage ?

Ian67

Turned out to be wheel bearings, couldn't tell that they were bad by messing with them but replaced them and noise gone. I guess they were in biggining stages of failing.

88 orangepeel notch

Glad to hear and thanks for the update. It helps that next person with similar troubles.

Ian67

Yes that's was my hope is the someone could use it if they have a similar issue