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- - U joints. (https://www.jeepscanada.com/jeep-mailing-list-32/u-joints-43940/)

The best way to tell is to take off the drive shaft (not that hard) and feel
for roughness or slop in the joints. They can feel nice and tight when you
crawl under the vehicle, but if they are starting to seize up they will get
loose pretty quick. One good thing is that the drive shaft is
(theoretically) too short to pole vault your vehicle that far when the front
joint breaks, and Myth Busters debunked that one anyway.

The vibration stopping "when I let off the gas or depress the clutch" is a
pretty good sign of a bad U-joint.

Earle

"jerryg" <Gregginn7@msn.com> wrote in message
news:1170387139.631758.294900@q2g2000cwa.googlegro ups.com...
> On Feb 1, 9:30 pm, "jerryg" <Greggi...@msn.com> wrote:
> > On Feb 1, 9:27 pm, "Carl S" <carlsai...@REMOVE.hotmail.com> wrote:
> >
> >
> >
> >
> >
> > > Yes, the jeep should be in gear. Check out your front end and tire
balance
> > > if you are getting a steering wheel vibe.
> >
> > > Carl
> >
> > > "jerryg" <Greggi...@msn.com> wrote in message
> >
> > >news:1170386450.971974.313420@j27g2000cwj.googleg roups.com...
> >
> > > > On Feb 1, 9:14 pm, "jerryg" <Greggi...@msn.com> wrote:
> > > >> On Feb 1, 9:07 pm, "Carl S" <carlsai...@REMOVE.hotmail.com> wrote:
> >
> > > >> > How about the rust? I would go ahead and replace 'em anyway if
you
> > > >> > don't
> > > >> > know when they were last replaced.
> >
> > > >> > Carl
> >
> > > >> > "jerryg" <Greggi...@msn.com> wrote in message
> >
> > > >> >news:1170385245.953781.269690@a34g2000cwb.googleg roups.com...
> >
> > > >> > > On Feb 1, 8:53 pm, "Carl S" <carlsai...@REMOVE.hotmail.com>
wrote:
> > > >> > >> I do not know if they cross between the 84-86 XJ's and later
models,
> > > >> > >> but
> > > >> > >> AFAIK the rear u-joints, front u-joints and front axle
u-joints are
> > > >> > >> all
> > > >> > >> the
> > > >> > >> same part number for 87-01 XJ's, all YJ's and TJ's. (D35
axle).
> >
> > > >> > >> Carl
> >
> > > >> > >> "jerryg" <Greggi...@msn.com> wrote in message
> >
> > > >> > >>news:1170382833.533061.151470@q2g2000cwa.googleg roups.com...
> >
> > > >> > >> > On Feb 1, 7:49 pm, "Carl S" <carlsai...@REMOVE.hotmail.com>
wrote:
> > > >> > >> >> Greg,
> >
> > > >> > >> >> Unexplained vibes is a big indicator. Block the wheels and
climb
> > > >> > >> >> under
> > > >> > >> >> there. Rotate the shaft back and fourth and look for slop
in the
> > > >> > >> >> joints.
> > > >> > >> >> It's $10 for two new joints and takes around 10-15 minutes
to
> > > >> > >> >> change
> > > >> > >> >> for
> > > >> > >> >> an
> > > >> > >> >> experianced person, 45 for a first-timer. They probably
need it.
> >
> > > >> > >> >> Carl
> >
> > > >> > >> >> "jerryg" <Greggi...@msn.com> wrote in message
> >
> > > >> > >> >>news:1170380310.286088.65610@q2g2000cwa.googlegr oups.com...
> >
> > > >> > >> >> > How can I tell when I need to replace my rear u joint on
my 95
> > > >> > >> >> > YJ?
> > > >> > >> >> > Any
> > > >> > >> >> > visible signs? I am noticing some unexplained vibration.
> >
> > > >> > >> >> > Thanks,
> >
> > > >> > >> >> > Greg- Hide quoted text -
> >
> > > >> > >> >> - Show quoted text -
> >
> > > >> > >> > Hi Carl. Thanks for the advice. Makes sense. My other
question is
> > > >> > >> > then, I just bought an 86 XJ and with it the guy threw in 4
brand
> > > >> > >> > new
> > > >> > >> > u joints!! Are they universal to Jeeps, say YJ to XJ ?
> >
> > > >> > >> > Greg- Hide quoted text -
> >
> > > >> > >> - Show quoted text -
> >
> > > >> > > Well I just went out and climed under it. No noticeable play
but that
> > > >> > > doesn't mean that there isn't any right?
> >
> > > >> > > Greg- Hide quoted text -
> >
> > > >> > - Show quoted text -
> >
> > > >> No rust seeping that I saw, it appeared very dry. I am getting some
> > > >> vibration thru the steering wheel and shifter. When I depress the
> > > >> clutch or let off the gas, it stops. It seems to be getting worse.
I
> > > >> thought maybe the u joints, but maybe a slipping clutch? I don't
know,
> > > >> guess I'll have to take it to my mechanic. I really hate doing
that!
> > > >> It has a 5 speed and about 80k miles on it.
> >
> > > >> Greg- Hide quoted text -
> >
> > > >> - Show quoted text -
> >
> > > > Should my Jeep be in gear when I perform this test?
> >
> > > > Greg- Hide quoted text -
> >
> > > - Show quoted text -
> >
> > Why when I let off the gas or depress the clutch does it stop. That
> > wouldn't be unbalanced tires or front end probs wpuld it?
> >
> > Greg- Hide quoted text -
> >
> > - Show quoted text -
>
> Also feel it in the shifter as well.
>
> Greg
>

When I went to Canadian Tire for my first U joint, computer said, " fits
jeep, 1946 to 2001" they were looking under 81 CJ7 so don't know if that
goes for the bigger jeeps or not, thought it was funny though. But I do know
81 CJ, 88 and 95 all use the same driveshaft U joints.

"Carl S" <carlsaiyed@REMOVE.hotmail.com> wrote in message
news:QredncL5xforOl_YnZ2dnUVZ_oWdnZ2d@comcast.com. ..
>I do not know if they cross between the 84-86 XJ's and later models, but
>AFAIK the rear u-joints, front u-joints and front axle u-joints are all the
>same part number for 87-01 XJ's, all YJ's and TJ's. (D35 axle).
>
> Carl
>
>
> "jerryg" <Gregginn7@msn.com> wrote in message
> news:1170382833.533061.151470@q2g2000cwa.googlegro ups.com...
>> On Feb 1, 7:49 pm, "Carl S" <carlsai...@REMOVE.hotmail.com> wrote:
>>> Greg,
>>>
>>> Unexplained vibes is a big indicator. Block the wheels and climb under
>>> there. Rotate the shaft back and fourth and look for slop in the joints.
>>> It's $10 for two new joints and takes around 10-15 minutes to change for
>>> an
>>> experianced person, 45 for a first-timer. They probably need it.
>>>
>>> Carl
>>>
>>> "jerryg" <Greggi...@msn.com> wrote in message
>>>
>>> news:1170380310.286088.65610@q2g2000cwa.googlegrou ps.com...
>>>
>>>
>>>
>>> > How can I tell when I need to replace my rear u joint on my 95 YJ? Any
>>> > visible signs? I am noticing some unexplained vibration.
>>>
>>> > Thanks,
>>>
>>> > Greg- Hide quoted text -
>>>
>>> - Show quoted text -
>>
>> Hi Carl. Thanks for the advice. Makes sense. My other question is
>> then, I just bought an 86 XJ and with it the guy threw in 4 brand new
>> u joints!! Are they universal to Jeeps, say YJ to XJ ?
>>
>> Greg
>>
>
>

Jeeps once were a wonderful product, darned shame what they have done
to latest editions. Now they want to be like everyone else and throw
away what made a Jeep a Jeep!