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Old 08-09-2006, 02:56 PM   #1 (permalink)
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Is an 8" rear axle from a 67 falcon the same width as a mustang 65/66?

From what I've read, the 8" rear axle width should be the same as a 1965-1966 mustang, (that's 52" right?)

I was wondering if one could take from the bird to make a pony run.

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Old 08-10-2006, 10:31 AM   #2 (permalink)
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I found this link, but I'm still not sure, http://www.quickperformance.com/Tech...us_measure.htm
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Old 08-10-2006, 11:26 AM   #3 (permalink)
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I question the data in that link. I used to have a 67 Mustang rear end in my car and IIRC it was 2" wider than a 65-66 rearend, not 3/4".

Sorry I don't know the width of a 67 Falcon.
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Old 08-10-2006, 07:41 PM   #4 (permalink)
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There was a rear axle dimension chart in July '04 Mustang & Fords Mag. Shows '65-66 Mustang & '66-70 Falcon exactly the same dimensions -- 57-3/8" flange to flange & 43" center to center of spring perch. Only issue is Falcon wagons & Rancheros which have narrower spring perch dimension, otherwise you are cool.
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Old 08-10-2006, 09:42 PM   #5 (permalink)
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Quote:
Originally Posted by 66Sprint200
Only issue is Falcon wagons & Rancheros which have narrower spring perch dimension, otherwise you are cool.
That's good to know. The car that I was looking at was a wagon. Thanks for saving me a bunch of elbow grease.

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Old 08-10-2006, 10:57 PM   #6 (permalink)
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66Sprint200
I question that chart. I have a 66 coupe with an 8" and it measures 57 1/4" and the rear I pulled out of a 67 Falcon measures at 59 1/4"-same as a 67-68 Mustang. I bought it to run Late model wheels on the car. I found out later the spring perch width is wider on the Falcon rear than the Mustang.

Here's some info:
65-66 Mustang 57.25 inches
67-70 Mustang 59.25 inches
71-73 Mustang 61.25 inches
77-81 Versailles 58.50 inches
74 Maverick 8" 56.50 inches
75 Mustang II 8" 57.00 inches
67-73 Mustang, Torino, Ranchero, Fairlane 9" 59.25 inches to 61.25 inches
57-59 Ranchero and station wagon rears, 57.25 inches
66-77 Bronco 9", 58 inches
77-81 Granada/Versailles, 58 inches
67-71 Comet, Cougar, Mustang, Fairlane, 59.25 inches
71-73 Mustang, 61.25 inches
64 Falcon 58 inches
67 Cougar 60 inches
67 Fairlane 63.50 inches (coil springs)
72 Ford Van 3/4 ton 68 inches
73-86 65.25 inches
57-59 Ranchero and station wagon 57.25 inches (narrowest 9" housing)
66-77 Bronco 58 inches but has 5-on-5 1/2 inch diameter bolt circle
67-73 Torinos, Rancheros, Fairlanes 59.25 inches or 61.25 inches
67-71 Comets, Cougars, Fairlanes 59.25 inches
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Old 08-11-2006, 10:02 AM   #7 (permalink)
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the quick performance chart is completely wrong on SOOOOOO many things so forget looking at it. and the 66 falcon was based on the 66 fairlane platform(they both could be had with a 390) just shorter. they share the same rear which is wider than a 65/66 mustang and has 44.5" perch centers.

in a nutshell IT WON'T FIT correctly and without modifications.
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