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Unread 05-15-2013, 03:07 PM   #16
ratmonkey
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1997 ZJ 
 
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Quote:
Originally Posted by speedbucket View Post
i've had this same thing for 75k miles with no change in ti
wwwwwwwwwwwwwwwwwwooooooooooooooooooooooooooowwwww wwwwwwwwwwwwwwwwoooooooooooooooooowwwwwwwwwwwwwwww ooooooooooooooowwwwwwwwwwwwwwwwwwooooooooooooooooo ooowwwwwwwwwwwwwwwwooooooooooooooooowwwwwwwwwwwwww wwwww
sounds like that^ no rpm change no felling in the seat, i just figured it was harmonics of the drivetrain. it makes me sleepy



your's probably is the mount. there was a TSB on the transmission mount causing a harmonic vibration at 1500rpm at highway cruising speed.

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Unread 05-15-2013, 03:16 PM   #17
tucsonzj
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Quote:
Originally Posted by ratmonkey View Post

your's probably is the mount. there was a TSB on the transmission mount causing a harmonic vibration at 1500rpm at highway cruising speed.
Tsb? And would you assume same for mine?
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1995 ZJ Limited-3.5" Rubicon Express, 33x12.5s and some other stuff. Maybe half of it works, but it stops so that helps.

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Yeh, washing it inside and out is on my to-do, eventually, maybe, if I have time, OOOH angle grinder.

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Unread 05-15-2013, 03:46 PM   #18
ratmonkey
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the TSB (technical service bulletin) applies to the old longitudinal trans mount the early zj's had 93-95. i believe the fix was to update to the late style mount and crossmember.
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Unread 05-15-2013, 07:52 PM   #19
speedbucket
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Originally Posted by ratmonkey View Post
the TSB (technical service bulletin) applies to the old longitudinal trans mount the early zj's had 93-95. i believe the fix was to update to the late style mount and crossmember.
I was going to make a new support with two longitudinal bushings spread about 6" out when I do my flat belly x member. See any issues with this?
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Unread 05-16-2013, 06:13 PM   #20
ratmonkey
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might get more harmonic vibes that way.
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