Fox T-Bird/Cougar Forums

Technical => Drivetrain Tech => Topic started by: philrogers on April 14, 2006, 12:18:21 AM

Title: Side motion in rearend
Post by: philrogers on April 14, 2006, 12:18:21 AM
Finally figured out what was making the clunking noise in the rearend on my 88 tbird today.I grabbed onto the rear tire,either one ane it will move in and out a inch or more and make a clunking noise when doing this.Does anyone have any idea what is going on and how to fix it.
Title: Side motion in rearend
Post by: Chuck W on April 14, 2006, 09:36:23 AM
Do you mean the entire rear end shifts back and forth under the car?  Welcome to 20 year old Fox rear suspension bushings. 

New control arm bushings or aftermarket control arms is the only route to "fix" it. 

There is always a little lateral movement in the rear suspension on the Fox cars.  The splayed upper links only do so much to hold it in place.  Some sort of lateral link (panhard bar, Watts link, etc) is the only sure way to locate the axle, BUT I'm guessing bushings/control arms are about all you'll need.
Title: Side motion in rearend
Post by: MasterBlaster on April 14, 2006, 11:33:36 AM
Unless you mean the axles slide in and out of the housing, in which case you've got some very worn parts inside.
.
Title: Side motion in rearend
Post by: Chuck W on April 14, 2006, 11:36:44 AM
If the axles are moving in and out of the axle housing 1"+...there are SERIOUS problems and they should be separating themsleves from the housing soon.....
Title: Side motion in rearend
Post by: CougarSE on April 14, 2006, 12:29:00 PM
On my car they move in and out about 1/2 inch.  In certian manuvers(sp?) it will "clunk-clunk-clunk"  I've been told it does this when the traction lock is worn out.  And mine is very worn out.
Title: Side motion in rearend
Post by: 88cougarxr7 on April 14, 2006, 12:56:21 PM
id say the major thing to check here is your bushings...
Title: Side motion in rearend
Post by: CougarSE on April 14, 2006, 02:14:34 PM
its not the bushings, the problem has been established.
 
Your gona lose a C clip and when you do its not gona be pretty.
Title: Side motion in rearend
Post by: philrogers on April 14, 2006, 04:34:22 PM
I am in the process of checking the c-clips now.
Title: Side motion in rearend
Post by: Chuck W on April 14, 2006, 04:36:08 PM
Quote from: CougarSE
its not the bushings, the problem has been established.
 
Your gona lose a C clip and when you do its not gona be pretty.

I don't remember him actually saying what the problem was....that's why I asked to begin with...
Title: Side motion in rearend
Post by: philrogers on April 14, 2006, 04:37:04 PM
I have an almost new mustang rearend.Maybe I can swep out some parts
Title: Side motion in rearend
Post by: philrogers on April 14, 2006, 04:39:30 PM
Oh yeah I was talking about the axles.
Title: Side motion in rearend
Post by: CougarSE on April 14, 2006, 04:42:11 PM
Quote from: philrogers
Oh yeah I was talking about the axles.

 
I are smart.
Title: Side motion in rearend
Post by: Chuck W on April 14, 2006, 04:45:40 PM
Quote from: CougarSE
I are smart.


Check out the big brain on Claude!!
Title: Side motion in rearend
Post by: CougarSE on April 14, 2006, 04:49:38 PM
lol  hahaha
 
Tell me mr rogers, when you hit speed bumps in parking lots at sort of an angle when you are not touching the brake pedal does it go clunk clunk clunk as it shifts from side to side?  Mine does
Title: Side motion in rearend
Post by: philrogers on April 14, 2006, 11:16:22 PM
mostly when I make a left turn out of my driveway.
Title: Side motion in rearend
Post by: philrogers on April 17, 2006, 10:32:28 PM
There is wear on the end of the axle where the c clip goes.I am wondering about something called a c clip eliminater.Or replacing the axles.Something called a moser axle.I don't know anything about any of this.
Title: Side motion in rearend
Post by: shame302 on April 17, 2006, 10:56:44 PM
i think some side play is normal. every tbird ive had had a little. if you push the car from side to side by the trunk it will go ...plunk, plunk, plunk back and forth...
Title: Side motion in rearend
Post by: Chuck W on April 18, 2006, 12:43:57 AM
Quote from: shame302
i think some side play is normal. every tbird ive had had a little. if you push the car from side to side by the trunk it will go ...plunk, plunk, plunk back and forth...

Not mine :D
Title: Side motion in rearend
Post by: softtouch on April 18, 2006, 06:36:57 PM
The '84 shop manual says up to .030" endplay is ok.
Quote: "Be sure to measure the end play with a dial indicator; not by feel. A guess usually feels like far more end play than there actually is."
It is adjusted by making a shim the same shape as the C-washer and intalling it behind the C-washer.
Must have a minimum of .005" end play.
Title: Side motion in rearend
Post by: philrogers on April 28, 2006, 01:27:34 PM
Does anyone sell the Clutch pack for the 7.5 rearend.Ford charges 200.00 for it.I can buy it for a 8.8 for 54.00 but that will not work.
Title: Side motion in rearend
Post by: JeremyB on April 28, 2006, 02:36:16 PM
http://www.store.yahoo.com/ratech/fo7axpa1.html