9" ford axle shaft length identity - Hot Rod Forum : Hotrodders Bulletin Board
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Old 01-08-2009, 04:07 PM
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9" ford axle shaft length identity

hey guys
I am trying to save money on axles. Instead of a set of 300 to 400 dollar axles. Don't have a big horse power power plant under the hood. I have access to bar and bearing dumbies to narrow a rear end. And have modified a few. But ordered new axles for the people. I am trying to find out the driver and passenger axle lengths for either a '64 to '65 falcon 9" or '70 thru '77 bronco 9" rear. These are suppose to be 58" wide. Which is what I need for my a model pickup. I have a rear end I can narrow. This way I could get the axle and narrow the housing to to them. Been surfing the internet and have been striking out. Can find all the info needed for complete rear widths. I need more info than that. Any info out there?
Thanks

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Old 01-08-2009, 05:17 PM
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Originally Posted by maninacoupe
hey guys
I am trying to save money on axles. Instead of a set of 300 to 400 dollar axles. Don't have a big horse power power plant under the hood. I have access to bar and bearing dumbies to narrow a rear end. And have modified a few. But ordered new axles for the people. I am trying to find out the driver and passenger axle lengths for either a '64 to '65 falcon 9" or '70 thru '77 bronco 9" rear. These are suppose to be 58" wide. Which is what I need for my a model pickup. I have a rear end I can narrow. This way I could get the axle and narrow the housing to to them. Been surfing the internet and have been striking out. Can find all the info needed for complete rear widths. I need more info than that. Any info out there?
Thanks

66-75 bronco small brg RH 29 5/8
66-75 bronco small brg LH 27 1/4

66-75 bronco large brg LH 26 15/16
66-75 bronco large brg RH 29 5/16

74-75 bronco large brg LH 27 1/4
74-75 bronco large brg RH 29 3/4

76-77 bronco large brg LH 27 1/4
76-77 bronco large brg RH 29 11/16
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Old 01-09-2009, 07:17 PM
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Quote:
Originally Posted by maninacoupe
hey guys
I am trying to save money on axles. Instead of a set of 300 to 400 dollar axles. Don't have a big horse power power plant under the hood. I have access to bar and bearing dumbies to narrow a rear end. And have modified a few. But ordered new axles for the people. I am trying to find out the driver and passenger axle lengths for either a '64 to '65 falcon 9" or '70 thru '77 bronco 9" rear. These are suppose to be 58" wide. Which is what I need for my a model pickup. I have a rear end I can narrow. This way I could get the axle and narrow the housing to to them. Been surfing the internet and have been striking out. Can find all the info needed for complete rear widths. I need more info than that. Any info out there?
Thanks
Falcons never had 9 inch rears.
Falcon 8 inch rears were 57 1/2 wide same as the 57-59 big Fords, and the 64-66 Mustangs. Mavericks and Granadas through 80.
The 8 inch axles are the same as the 28 spline 9 inch axles, if the overall width is the same. And all those cars had the same 5 on 4 1/2 bolt pattern.
These rear ends have a housing width of 52".
I don't have my book here with me, so I hate to commit, and I have measured a lot and wrote it down,

If you are under 300 hp, I would suggest grabbing a mid 70s Granada 8 inch rear and just bolting the whole thing in. You can probably get a complete unit for $100 or less, ready to drive.

If you get the inclination, the Ford 8.8 is basicly a GM 12 bolt inside, and the Ranger is the correct width. 4x4 rears have 3.73 gears and often posi. easy to get parts.

Last edited by ScoTFrenzel; 01-09-2009 at 07:24 PM.
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Old 01-09-2009, 08:04 PM
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64-66 Mustang LH 26"
64-66 Mustang RH 30 1/8

66-70 Mustang & Cougar LH 27 1/8
66-70 Mustang & Cougar RH 31 1/4

71-72 Mustang & Cougar LH 27 7/8
71-72 Mustang & Cougar RH 31 7/8
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Old 01-10-2009, 06:23 PM
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Quote:
Originally Posted by prostreet6t9
64-66 Mustang LH 26"
64-66 Mustang RH 30 1/8

8
Yes 26 and 30 are the correct dimensions for the rear he asked about, and those I outlined in a post above.
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