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1
Drivetrain Tech / Re: Axle swap
Last post by count -
It's been a minute, but I'm running 99-04 axles  and SN95 solid discs in my 87 7.5" rear end.

On paper it works perfectly, but I had to put small spacers to get the disc and caliper to properly align IIRC.

So you you were able to use axles from 99-04 and they worked with spacers? What kind of spaces and where did I you place them? 
2
Drivetrain Tech / Re: Axle swap
Last post by EricCoolCats -
Beau, close... 9" were finned, 10" were smooth.
https://www.coolcats.net/restoring/brakes.html

I appreciate that Ford put larger drums on at the end of the run. That's something they commonly do for whatever reason. The 1997 Cougars/T-Birds all got 4-wheel disc standard, and the front rotors were larger, just for that last model year of the body style. So I guess our cars set the precedent for that LOL.
3
Drivetrain Tech / Re: Axle swap
Last post by Beau -
To aid in distinction (that is, if there are any of these left in yards by now) the 9" drums were all smooth, the 10" were finned..

I have heard of some '88 Cats that had the bit drum 8.8 but have never seen any, either here on the forum or in junkyards. Have came across a few '88 XR7 cars in yards but all had the 7.5 but 10" drums.

5
Drivetrain Tech / Re: Axle swap
Last post by Chuck W -
So from what I understand (Chuck or Eric correct me here) is that the:

1) 87-88 Turbo Coupes had the 8.8 rear end that was the same housing width as the 86-98 Mustang 8.8 housing and were disc brake.
Correct.

2) The 88 XR-7 Cougar had a drum brake 8.8 that was the same width as the Turbo Coupe rear end from axle flange to axle flange but the housing is the same as the 86-98 Mustang 8.8 housing and not very common.
Correct. There was a V8 Cougar that had an 8.8 drum brake rear. Narrow housing. Longer axles.
 

3) There were some 87-88 Thunderbirds that had an 8.8 with drum brakes but I believe the housing was wider like the 7.5" housings.
No. There were no 8.8's in any other 83-88 Tbird, other than mentioned in #1 and #2. All 86-88 TBIrds/Cougars (Not listed above) had the wide housing 7.5.

I looked at the chart and the XR-7 is not discussed not is any type of 8.8 drum brake rear end.
6
Drivetrain Tech / Re: Axle swap
Last post by EricCoolCats -
So from what I understand (Chuck or Eric correct me here) is that the:

1) 87-88 Turbo Coupes had the 8.8 rear end that was the same housing width as the 86-98 Mustang 8.8 housing and were disc brake.
2) The 88 XR-7 Cougar had a drum brake 8.8 that was the same width as the Turbo Coupe rear end from axle flange to axle flange but the housing is the same as the 86-98 Mustang 8.8 housing and not very common.
3) There were some 87-88 Thunderbirds that had an 8.8 with drum brakes but I believe the housing was wider like the 7.5" housings.

I looked at the chart and the XR-7 is not discussed not is any type of 8.8 drum brake rear end.

1) Correct.

2) Correct.

3) I don't believe any 1987-88 non-Turbo Coupe/1988 non-XR7 got an 8.8" rear. At least, I've never found any evidence. Even the 1987 XR-7's got the 7.5" rear. Now in 1988 only, the rear drums went to 10" regardless of model, and that was for V6 and V8 cars. (I have heard from a few people that their car still had 9" drums but those are exceptions).

It is possible to take an 8.8" housing and use T-Bird/Cougar axles, backing plates, and 10" drum hardware and make your own 8.8" drum rear.
8
Drivetrain Tech / Re: Axle swap
Last post by Aerocoupe -
So from what I understand (Chuck or Eric correct me here) is that the:

1) 87-88 Turbo Coupes had the 8.8 rear end that was the same housing width as the 86-98 Mustang 8.8 housing and were disc brake.
2) The 88 XR-7 Cougar had a drum brake 8.8 that was the same width as the Turbo Coupe rear end from axle flange to axle flange but the housing is the same as the 86-98 Mustang 8.8 housing and not very common.
3) There were some 87-88 Thunderbirds that had an 8.8 with drum brakes but I believe the housing was wider like the 7.5" housings.

I looked at the chart and the XR-7 is not discussed not is any type of 8.8 drum brake rear end.
10
User Rides / Re: Chuck's '83 TBird
Last post by Chuck W -
Took apart the MS unit the other day to swap out the old serial port with the USB/serial adapter.




Checked out the ECU to make sure it connected to the laptop fine, and reinstalled the ECU and the battery.

Got it fired up a couple days ago, but haven't had a chance to get it out for a drive yet, but that's coming soon.

Ready for a new season.  :smile: