Not So Good Vibrations

Joined
Apr 15, 2005
Messages
240
Between 50 and 60 mph. in drive if I let off the accelerator then
apply throttle again there is a extreme vibration.
but if I press hard the transmission down shifts and stops vibrating
the same if I manually shift into 3rd.

To best describe the vibration I would compare it to driving
a manual transmission and shifting from 2nd to 5th at 25 mph.

Any ideas??
 
Joined
Apr 15, 2005
Messages
240
It’s defiantly a transmission issue, what… I don’t know.
I’ve adjusted the throttle to transmission cable to specks.
 
Joined
Jun 20, 2005
Messages
258
Location
KC, MO
Have you checked your U Joint? My truck vibrated unbelievably (mirrors & all) between 50 & 60 but when I took my foot off the accelerator it went away. The U joint was shot & once I got the new one in, no more vibration.
 
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