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  IDing a 8.8 rearend

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Author Topic:   IDing a 8.8 rearend
bfxcomet
Gearhead

Posts: 617
From: Port Alberni, B.C. , Canada
Registered: Mar 2001

posted 03-07-2003 06:24 PM     Click Here to See the Profile for bfxcomet   Click Here to Email bfxcomet     Edit/Delete Message   Reply w/Quote
I'm going to buy a 8.8 rearend. The guy says it came from a 88 mustang. Is there any physical way to id a 8.8 compared to a 7.5. Example amount of cover bolts, actual size and id tag.
Roger

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65 comet project
84 T-bird 302/C4 14sec street/strip
Made in CANADA built for speed
#1145

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SteveLaRiviere
Administrator

Posts: 37258
From: Saco, Maine
Registered: May 99

posted 03-07-2003 06:44 PM     Click Here to See the Profile for SteveLaRiviere   Click Here to Email SteveLaRiviere     Edit/Delete Message   Reply w/Quote
If it has a tag, there will be a 88 or 75 on the bottom line next to the gear ratio.

If there's no tag, since they both have 10 bolts, the 7.5 is shaped like a circle with flats at the top and bottom, while the 8.8 is square with rounded corners.

I hope that makes sense. If you have a Summit catalog handy they show the gasket shapes.

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'70 Mustang Mach 1 - '72 Mustang Sprint - '94 F-150

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bfxcomet
Gearhead

Posts: 617
From: Port Alberni, B.C. , Canada
Registered: Mar 2001

posted 03-07-2003 07:08 PM     Click Here to See the Profile for bfxcomet   Click Here to Email bfxcomet     Edit/Delete Message   Reply w/Quote
Thanks Steve, the shape of the cover is what I need so I can id it easy.
Roger

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65 comet project
84 T-bird 302/C4 14sec street/strip
Made in CANADA built for speed
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Rory McNeil
Gearhead

Posts: 1311
From: Surrey, B.C. Canada
Registered: Nov 2000

posted 03-08-2003 02:22 AM     Click Here to See the Profile for Rory McNeil   Click Here to Email Rory McNeil     Edit/Delete Message   Reply w/Quote
Also, all the Mustang 8.8`s have the brackets for the quad shocks welded to the axle tubes, just behind the backing plates. Although 84 & 85 Mustang 5.0 cars had the 7.5" rear with quad shocks as well, the older cars didn`t.

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78 Fairmont 428 4 speed [email protected]
80 Fairmont 302 5 speed [email protected]
85 Mustang NHRA Stocker under construction, 302 5 speed
59 Meteor (Canadian Ford) 2 dr sedan 332, auto
74 F350 ramp truck 390 4spd

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67coupe
Gearhead

Posts: 450
From: dallas NC usa
Registered: Nov 2000

posted 03-08-2003 12:11 PM     Click Here to See the Profile for 67coupe   Click Here to Email 67coupe     Edit/Delete Message   Reply w/Quote
i dont rember the exact measurments but the 8.8 is right at 10" from the top bolt to the bottom bolt and the 7.5 was around 8 1/2" top to bottom bolt

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Josh
67 coupe with 351c
8.41 in the 1/8
1.90 60'
at 82.03 mph
94 Explorer
30 model A currently rustbucket
in process 67 convt with efi 5.0 and t5

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