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Old June 3rd, 2009, 08:53 PM   #1
Disturban
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14Bolt FF for SF swap?

Will a 14bolt FF be a direct swap in place of my 14bolt SF on my Suburban? Do they use same U joints, perches, E brake hook up, ect ect? Also is the spring perches from a truck the same width as my Burb?
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Old June 9th, 2009, 03:56 PM   #2
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Will a 14bolt FF be a direct swap in place of my 14bolt SF on my Suburban? Do they use same U joints, perches, E brake hook up, ect ect? Also is the spring perches from a truck the same width as my Burb?
It needs to be from the same generation truck as far as the perches are concerned. U-bolts will be different due to the diameter difference of the tubes. Same for spring plates.

E-brake connections can vary. The one that went into my Suburban had different backing plates, but I found a set off another 14bFF that had the correct cable inputs for my truck's cables.
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Old June 10th, 2009, 03:56 PM   #3
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What about drive shaft length?
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Old June 10th, 2009, 03:58 PM   #4
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I didn't have to change mine from the 14bSF to the 14bFF.
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Old June 11th, 2009, 12:03 AM   #5
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I didn't have to change mine from the 14bSF to the 14bFF.
Alright thanks
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Old June 14th, 2009, 10:35 PM   #6
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It needs to be from the same generation truck as far as the perches are concerned. U-bolts will be different due to the diameter difference of the tubes. Same for spring plates.
the 9.5 and 10.5 must have the same tube diameter , i have a set of the lower 88-98 body style axle plates and they fit either axle perfectly
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