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Fox T-Bird/Cougar Forums

Technical => Drivetrain Tech => Topic started by: CougarSE on July 14, 2006, 01:37:48 PM

Title: Pictures of the difference between 83-85 and 86-88 rear axles. and why i'm mad!!
Post by: CougarSE on July 14, 2006, 01:37:48 PM
I got a new axle for my car... but it looks like I didn't get what I thought I did.
 
This axle is the narrow housing 83-85 unit.. But its a 3.45 Posi rear... so its out of a TC or XR7.
 
First picture.  You can see on the radius behind the wheel  how shallow it it is.  This is my 88 axle
 
Second picture.  You can see how long the radius is on the back of the axle .
 
Now do you see how far the shoes are away from the  on the second pic?  Its not because of the incorrect drums as I was told,,,, but because the backing plates are incorrect!  Looks like someone tried to do a 10" drum conversion and used the wrong backing plates...  You can see the incorrect wear pattern on the shoes.......
Title: Pictures of the difference between 83-85 and 86-88 rear axles. and why i'm mad!!
Post by: CougarSE on July 14, 2006, 01:47:54 PM
Here you can see how close the backing plate is on the contraption axle (as I like to call it) is to the quad shock bracket.  Now on my old axle there is plenty of room..
Title: Pictures of the difference between 83-85 and 86-88 rear axles. and why i'm mad!!
Post by: 88turbo on July 14, 2006, 06:13:09 PM
maybe it was a mustang axle :dunno:
Title: Pictures of the difference between 83-85 and 86-88 rear axles. and why i'm mad!!
Post by: Chuck W on July 14, 2006, 07:12:22 PM
Quote from: 88turbo
maybe it was a mustang axle :dunno:
It might be a Mustang one (from a 2.3T car)that someone with an 86-88 Tbird/Cougar  w/ 10" drums tried to use, but never quite got right, or it's an 83-85 TC or 84-85 XR-7 7.5 axle......which is different than his 88 7.5.
Title: Pictures of the difference between 83-85 and 86-88 rear axles. and why i'm mad!!
Post by: Nate on July 14, 2006, 08:42:00 PM
its ok, rear brakes are over rated anyway... just cap off that line, toss it up, and come up to cat jam. if u need to stop faster, u can down shift lol :p
Title: Pictures of the difference between 83-85 and 86-88 rear axles. and why i'm mad!!
Post by: Haystack on July 14, 2006, 09:06:09 PM
makes burn outs easier. Or more like a brake stand. Even a stick 3.8 should be able to do that.
Title: Pictures of the difference between 83-85 and 86-88 rear axles. and why i'm mad!!
Post by: CougarSE on July 14, 2006, 09:58:14 PM
THIS MOTHER ****ER IS GRINDING ALREADY!!!!!
 
CAT JAM
CAT JAM
CAT JAM
CAT JAM
CAT JAM..
 
.......
.....
 
Fading fast.

 
 
 
*edit*

I wasted my 2000Th post on this?????
Title: Pictures of the difference between 83-85 and 86-88 rear axles. and why i'm mad!!
Post by: SLEEPER T-BIRD 87 on July 15, 2006, 01:07:54 AM
whay dont you just get the correct drums and use it as is?


1983-85 t-bird/cougar  used an offset drum  to correct for the shorter housing and longer axles.
Title: Pictures of the difference between 83-85 and 86-88 rear axles. and why i'm mad!!
Post by: Tbird232ci on July 15, 2006, 07:53:50 AM
Or use mustang axles.

It was most likely an 83-85 rear, and the dude threw his 88 axles, drums and backing plates on, and didnt know the axle length difference would have an effect.

Use stang axles temporarily, the only downfall is with snowflakes, the rear wheels look like they sit far inward.
Title: Pictures of the difference between 83-85 and 86-88 rear axles. and why i'm mad!!
Post by: Kitz Kat on July 15, 2006, 05:19:34 PM
What does the other side look like?
Title: Pictures of the difference between 83-85 and 86-88 rear axles. and why i'm mad!!
Post by: Kitz Kat on July 15, 2006, 05:22:54 PM
I'm lookin at the #2 pic and I see some shiny axle,like it's not in all the way or to long.
Title: Pictures of the difference between 83-85 and 86-88 rear axles. and why i'm mad!!
Post by: CougarSE on July 15, 2006, 08:08:28 PM
Quote from: SLEEPER T-BIRD 87
whay dont you just get the correct drums and use it as is?
 
 
1983-85 t-bird/cougar used an offset drum to correct for the shorter housing and longer axles.

 
Are you 100% sure about this?????
 
Cause if so the guy was right and I feal bad.
 
*edit*
 
Autozone lists only one part number for all of them for 10".
Title: Pictures of the difference between 83-85 and 86-88 rear axles. and why i'm mad!!
Post by: Chuck W on July 15, 2006, 08:53:08 PM
The backing plates are what is different......not the drums.
Title: Pictures of the difference between 83-85 and 86-88 rear axles. and why i'm mad!!
Post by: SLEEPER T-BIRD 87 on July 15, 2006, 10:14:40 PM
Quote from: Chuck W
The backing plates are what is different......not the drums.



1983-85.5 Cougars/Thunderbirds with the 7.5" rear have the identical rear end used in 1987-93 4-cylinder Fox Mustangs (and possibly earlier). The axle housing is the same width. The 9" brake drum had a large offset.


Quoted from coolcats guess i was thinking of the 9" brakes.
Title: Pictures of the difference between 83-85 and 86-88 rear axles. and why i'm mad!!
Post by: CougarSE on July 15, 2006, 10:32:13 PM
9" drums are different part numbers....
 
10" is not.
Title: Pictures of the difference between 83-85 and 86-88 rear axles. and why i'm mad!!
Post by: 83Heritage on July 17, 2006, 12:33:02 PM
I still have the 7.5 with 2.73 from my '83 with the drum brakes. If you need something in a pinch just let me know, I am about three and a half hours one way from you.
Title: Pictures of the difference between 83-85 and 86-88 rear axles. and why i'm mad!!
Post by: 30thtbird on July 17, 2006, 05:00:54 PM
When my brother and I swapped from the 85 7.5 to the 88 tc 8.8,we tried to use the axles,backing plates and all from the 85 7.5.The axles were too long just like in pic 2.Even had 1/2 in. to 3/4 in. of brake shoe showing.Went to the you pull it and grabbed some axles from an 84-86 fairmont/ltd.Everything slid together like it was meant to.
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