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1967 - 1972 F-100 & Larger F-Series Trucks Discuss the Bumpsides Ford Truck

Front Spring swap

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Old Oct 22, 2005 | 02:51 PM
  #1  
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67f100
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From: Gettysburg PA
Front Spring swap

I am moving a 74 front end to my 67. I read somewhere here on the forum ( I cant seem to find it now) That The 74 springs were 18 inches and the 67 springs were 16 inches and that when doing this swap you should keep the 67 springs and not use the 74's springs. Anyone know anything about this? Should I swap the springs and keep my old ones or use the 74's? They are both f100's
 

Last edited by 67f100; Oct 22, 2005 at 03:05 PM.
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Old Oct 22, 2005 | 07:46 PM
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73 and up had 2" longer springs for both the 2wd and 4x4, the difference was in the spring mount on the frame, so use the old springs.
 
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Old Oct 22, 2005 | 10:35 PM
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I measured both sets, the ones off the 67 as well as the 74 and both sets were 16 inches by about 5 and a half inches. pretty well indentical. I put the 67's back on the 74 so I could roll it around, so please tell me I dont have to take them back off!
 
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Old Oct 23, 2005 | 12:02 AM
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i have a set of both and the only thing i saw different was the diameter of the 79 spring. they are both the same height. 72 i6 and 79 400.
 
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Old Oct 23, 2005 | 01:10 AM
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So whats the verdict? I posted the question before I had the 74 springs out. So when I measued them they looked about the same to me. And the 67's seemed to fit fine in the 74. Keep or swap?
 
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Old Oct 23, 2005 | 01:23 AM
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How did the 74 sit? Did it look sagged?
 
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Old Oct 24, 2005 | 06:30 PM
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Well I have the front tires on now and It isn't sagging at all, looks about the same hieghth. Like I said I measured the springs and they were identical. The only thing I couldnt measure would be weight ratios. But I dont beleive they would differ coming off half tons so close together in years, especially when the front ends are an identical swap. Could it be that the taller springs were for the f250's on up? and maybe the 4wd's?
 
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