Classic Mustangs (Tech) Technical discussions about the Mustangs of yester-year.

8.8 Rear End Swap into 67 Coupe

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Old 07-27-2009, 12:13 AM
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pimp2303
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Default 8.8 Rear End Swap into 67 Coupe

how many people have done this swap before. is it pretty simple, is it worth it.
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Old 07-27-2009, 12:44 AM
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blue 67 coupe
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Last time I checked I thought the 67 had an 8.8 rear end stock i'm probably wrong but thought it was.
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Old 07-27-2009, 12:48 AM
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1slow67
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Originally Posted by blue 67 coupe
Last time I checked I thought the 67 had an 8.8 rear end stock i'm probably wrong but thought it was.
V8 was the 8" rear end.
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Old 07-27-2009, 12:54 AM
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blue 67 coupe
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Originally Posted by BA Mustang
V8 was the 8" rear end.
Ok thanks I can't remember where I got that from because I knew it wasn't a 9" but thought it was close. I can't help with anything then mine still has the 8".
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Old 07-27-2009, 07:46 AM
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andrewmp6
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No the 8.8 didn't come out tell the middle 80s.Think of a 8 inch as a baby 9 inch they look a like the diff cover is welded on a 8.8 is like the rest the diff cover comes off.I wouldn't do it the 8.8 is weaker then a 8 inch most say im crazy when i say but its true.Do you have a 8 inch now or a 7.5 and how much power are you making?
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Old 07-27-2009, 11:13 AM
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Kotobuki
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Originally Posted by andrewmp6
No the 8.8 didn't come out tell the middle 80s.Think of a 8 inch as a baby 9 inch they look a like the diff cover is welded on a 8.8 is like the rest the diff cover comes off.I wouldn't do it the 8.8 is weaker then a 8 inch most say im crazy when i say but its true.Do you have a 8 inch now or a 7.5 and how much power are you making?
I may have to mention the possibility of you being crazy. I don't mean to get argumentative here, and I hope I don't offend you, but... The 8.8 that they're using in the Mustang currently (which I assume is basically the same 8.8 that they started using on the Foxes) backs up the Motor in the Shelby SuperSnake package which drops something ridiculous like 725HP and somewhere in the 600lb/ft range. Sure the power doesn't come in quite as low as on the old bigger motors, but I doubt you'd get an 8" to survive very long behind it.

Oh, and if you pull one from a 95+ Explorer (and possibly other cars) you get 31 spline axles already in it (and disc brakes if you're into that). I'm just gonna guess that's probably a significant upgrade over the stock 8".
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Old 07-27-2009, 11:41 AM
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urban_cowboy
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For what it is worth, the 8.8 has less pinion to ring tooth contact at any one time than a Ford 9". That along with their strength and ease of installation and customization has made the Ford 9" the go to rearend for racing. I doubt you will overload an 8.8 torque-wise unless you are planning a racecar, but they are less strong than a Ford 9".
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Old 07-28-2009, 12:09 AM
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Scott H.
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.....

Last edited by Scott H.; 01-23-2010 at 08:59 PM.
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Old 07-28-2009, 12:54 AM
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andrewmp6
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The 8.8 in a Shelby is nothing like a stock mustang its built up.But Scott makes a good point if its your weekend car or drove not much its like buying a 747 for free peanuts.
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Old 11-24-2014, 01:59 PM
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Sorry to revive a new thread, but there have been so many on this topic that I didn't want to start a new one. I have a 67 Mustang convertible with a 351W. The car was originally I6 and I'm finishing the conversion with parts suitable for the V8.

I'm doing the Explorer 8.8 rear swap also. I picked up a '95, D4 axle code which is 3.73, limited slip, and disc brakes. The axle came with good rotors and caliper brackets, but it needs calipers. I've read many threads that deal with this swap, but none mention anything about the brakes.

I'm using this car as a Sunday driver. I want to improve performance, but it will not see the track. I still want to upgrade the brakes. I'm wondering if anyone can recommend brake calipers that will fit on the stock rotors (11 1/4?) and the stack brackets. Parts Geek has this Centric Brake Caliper - Rear Right Sale Price: $50.63
Part Number: 5257-07159749
Notes: Posi-Quiet Loaded Caliper-Preferred
They also sell a semi-loaded for $31.

Thanks,
Steve
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