(no subject)

[Lawrence C Leung]

IRS - Independent Rear Suspension. 

I thought you were talking about the Driveshaft - the shaft running from
the transmission tailpiece to the rear differential (i.e. center diff to
rear diff).

the shafts that run from the front transaxle to the wheels (and rear diff
to wheels), i.e. the ones with the CV joints are traditionally called
"half-shafts". It is these of which you speak. 

In this case, true, a sagging suspension MAY cause rubbing where the
half-shafts pass through the frame. It would take a severe tilt to cause
this though. 

LL - NY

On Tue, 27 Feb 2001 00:47:58 -0500 Ameer Antar <ameer at snet.net> writes:
>I'm not sure what IRS is, but I'm not talking about the front-to-rear 
>
>driveshaft, but the front driveshafts from the front diff. to wheels. 
>If 
>the springs sag on one side...maybe missing a spring spacer...the 
>driveshaft might have a close encounter w/ suspension/subframe 
>parts...Don't know if this is true, but a possibility. Examining the 
>suspension w/ weight on it will reveal the problem.
>
>-ameer
>
>At 05:49 PM 2/26/2001 , you wrote:
>>Quattro's have IRS, so the driveshaft hardly moves in "normal" 
>operation.
>>Don't know if the center bearing fails, but I'd imagine that you'd 
>hear a
>>lot of bumps if it's bad as well as scraping noises. If it's a 4KQ, 
>check
>>the exhaust hanging, it can scrape the driveshaft, though it wouldn't 
>be
>>a linear relationship, it'd be exponential. (BTDT!).
>>
>>LL - NY
>>
>>On Mon, 26 Feb 2001 01:39:59 -0500 Ameer Antar <ameer at snet.net> 
>writes:
>> >also check for marks on the driveshaft. I heard some strange noises 
>in
>> >my
>> >old Chevy wagon when one of the springs sagged too much...the
>> >driveshaft
>> >was hitting the subframe. You might want to look at the car from
>> >underneath
>> >on ramps, so the car's weight is on the suspension. You should be 
>able
>> >to
>> >see the problem then. good luck.
>> >
>> >-ameer
>> >
>> >At 12:52 AM 2/26/2001 , you wrote:
>> >>Could be a wheel bearing.  With the wheels on the car check it 
>for
>> >play
>> >>by jacking it up off the ground and forcing the tire side to 
>side.
>> >It
>> >>should feel solid, if it feels like the lug nuts may be a little
>> >loose
>> >>it's the bearing.  Plenty of posts on this one in the archives.
>> >>
>> >>BCNU,
>> >>Cobram at Juno.Com
>> >>http://www.geocities.com/cobramsri/index.html
>> >>
>> >>  "tucker smith" <tuckersmith at onewest.net> writes:
>> >> > Hello
>> >> >
>> >> > My 89 200TQ has suddenly developed a strange vibration 
>whenever
>> >the
>> >> > steering wheel is turned to the right (but not the left). There 
>is
>> >a
>> >> > linear correlation between speed of the car and the intensity 
>of
>> >the
>> >> > vibration. It is a noise very much like driving over those
>> >"wake-up"
>> >> > strips on the interstate. I took both wheels off and the hubs
>> >spin
>> >> > fine - no noise. I wonder if anyone has gone through this 
>before.
>> >>
>> >>
>> >>
>> >>________________________________________________________________
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>