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Need frame measurement, 77 F-250 4x4

 
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Old 02-19-2009, 07:18 AM
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Need frame measurement, 77 F-250 4x4

Hey all I'm actually working on an older truck (52 F-3) that I'm converting over to 4wd using late 70's driveline and I need some help.

I just picked up a HD Dana 44 axle setup (leaf sprung) out of a 77 F-250, but the guy had already scrapped the truck before I could get a couple measurements that I needed to get everything setup right. I included a sketch below. What I need is:

(A) the distance from the centerhole of the front mount to the axle centerline, and
(B) the distance from the centerhole of front mount to the centerhole of the rear mount.

For those that are curious, I'm actually using a 79 Dana 44HD HP housing narrowed to fit, with the older "big hub" external locking hubs, 460, NP-435, NP-205 combo with a Dana 60 rear.

Thanks in advance.

 
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Old 02-19-2009, 11:00 AM
1977f250
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I have a 77.5 F250 4x4 with the 78/79 style frame with power steering and can check if you have that one not the same as a early 77
 
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Old 02-19-2009, 11:20 AM
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Ok, I wasn't aware there was a differance in the frames over these years. The suspension I have would be early 77 style.
 
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Old 02-19-2009, 12:17 PM
barbsbuddy
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Off of my early '77;
A measures 25"
B measures 53"
Good Luck.
 
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Old 02-19-2009, 01:37 PM
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on my 77.5
A measures 26 1/4"
B measures 53 1/2"
 
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Old 02-19-2009, 01:57 PM
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thanks a bunch, that will certainly help
 
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Old 02-19-2009, 02:07 PM
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I think that the biggest differences in the 77.5-79 and pre 77.5 is the front crossmember under the motor and the 77.5-79 if it has power steering, has a power gearbox not the power assist sleeve, and the frame may be wider but not real sure about that.
 
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Old 02-19-2009, 02:27 PM
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Originally Posted by 1977f250 View Post
I think that the biggest differences in the 77.5-79 and pre 77.5 is the front crossmember under the motor and the 77.5-79 if it has power steering, has a power gearbox not the power assist sleeve, and the frame may be wider but not real sure about that.
Nice to know, thankfully none of those will be an issue for me since I am using a completely differant frame and am building my own cross member and narrow the axle bout 6 inches.
 

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