I just bought a 2001 with auto and 4.0. I feel vibration in the floor off and on At speeds from 25mph up to even 70mph. I am trying to nail down if it is the road or not. It is not in the steering wheel and the tires are in balance. What would make the vibration in the floorboard area?

Any ideas are appreciated.

 

drive shaft universal joints

 

As chees-man said and also check to see that the bolts are not coming loose on the UV joints themselves.
You never know who's been under there and if they forgot to tighten them and/or used the wrong hardware.

 

get them replaced soon

or risk the joints themselves seizing completely and ripping off your transmissions tail stock

i have seen that carnage , what a mess

 

Well I took it to the local dealer today and they say left axle bent! How that could happen I had no idea on a 2WD that probably has never been off road. Any thoughts on this being true? Has anyone else had a 2WD axle bend?

Thanks

 

I bent an axle in a Camaro back in the day doing a powerslide off the highway into the grass at over 100 mph. Could have been slid sideways into a curb. Can you visually see wobble from behind ?

 

I cannot and they said you had to have it lifted in order to tell. I will check tomorrow

 

some owner before you probable over loaded the rear axle housing

the axle shaft can only flex so much before it forms a bend on the shaft itself

 

Well I put a new axle shaft in. It is better but I swear I saw nothing wrong with the old one. There is still some steering wheel wobble but the basic vibration in the floor has been reduced.