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I had a similar problem. It turn out to be the driveshaft. Aparently, =
the driveshaft started resonating at 65 and didn't go away until I =
reached 70. At this range, which is where most of my driving is done, =
it caused the rear seal and bushing sleeve in the tail-shaft housing of =
the transmission to wollow out and fail. I took the tailshaft housing =
off and had the bushing pressed out and a new seal put in. Next I took =
the driveshaft to a heavy equipment service and rebalanced the =
driveshaft and replace the yoke piece and no problems since. The yoke =
was badly scored but the driveshaft was straight and the weight welded =
on to it had a hair too much. The u-joints didn't appear to have =
suffered the extra abuse like the bushing and seal. Oh, I also replaced =
the trans mount with a poly-urethane mount. I thought at first it was =
just engine surge but tranny fluid on the ground was the give away. =20
Smitty Nash
'92 Dak 3.9L Magnum
90K+
----------
From: Matthew Brandes
Sent: Thursday, September 11, 1997 11:46 AM
To: dakota@ait.fredonia.edu
Subject: Engine Vibration
(I posted this in the Newsgroup a couple of months ago but received =
little
response, so I'm reposting here...)
I am about to schedule my second maintenance on my '97 Dak V8. When I
first got the truck I noticed what I think is an engine vibration =
between
66-68 mph. It's easily felt in steering wheel and gas pedal and you can
kinda hear it w/o the radio on. When I took it in for it's first
maintenance they thought it was due to an out of balance tire. So they
balanced, rotated, and aligned the tires. Did not get rid of the =
vibration
in the least bit. =20
Does anyone have any ideas where this vibration could be originating =
from?
I'd like to give the Service Manager some ideas on where to look. In my
mind, something in the engine is out of balance or it could be something =
in
the transmission. =20
Matthew Brandes
'97 Dak CC, Auto, V8
Matthew Brandes
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
Systems Administrator
First Realty Advisors, Inc.
Voice: (913)236-4750 Fax: (913)236-4307
EMail: mbrandes@realworks.com
Microsoft Certified Product Specialist
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
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