Vibration in O.D. only ?

[Summit]

anyone else ??? truck is smooth til it shifts to od,, dont matter what speed,, 50 or 75, tech thinks its a bad T/C ? any transmission gurus want to comment on this one? tech says he was told this in his last "class" he went to.

tech says to put in an aftermarket T/C thats balanced and it will cure the vibe. mine has gottn worse in 7kmi.

 

[RodneyNichols]

I ONLY have vibration at an idle. It doesn't matter if I'm in drive with brake on, or park. It's at about 800 RPM's it's coming from the passenger side like by the turbo. If I just barely touch the throttle it goes away around 1000 rpm's. It's driving me crazy.

I like pulling up to a drive through and not having to turn the truck off with the 3rd gen. but with the vibration so bad I have to turn the truck off just to hear them.

when I'm sitting there idling thats all I here is the vibration and not the engine.



Does anyone have this problem? any ideas on how to fix it?



thanks.