can someone tell me the source of a vibration coming from the underside of my 88 cabriolet (e350 van conversion) maybe the driveshaft? it happens when accelerating and running down the road last year a simalar thing happened and it was a broken driveshaft support or something like that

the vibration began as soon as i dropped our 5th wheel after pulling it for the first time of the year the vibe quits as soon as you let up on the gas, and begins as soon as you accellerat

if any ideas please help i gotta go get the trailer next week

thanks for any help

 

if the u-joints are tight then it is most likely in the rear end. I was almost going to ask how you pull a fiver but you have one of those cut away conversion vans.

 

Yes, your're right, it is one of those cut away conversion vans. It's old... but does the job. I will check the u-joints today.

Thank you so much for your time and expert advise!