Frame question ??
Cargo Master
Joined: Sep 2005
Posts: 2,954
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PS, If mine was a step side, (flare side), I would not have had to lift the body and bed. I doubt anyone would notice a step side bed being an inch high.
Fleet Owner
Joined: Jun 1999
Posts: 24,552
Likes: 74
From: Creedmoor, North Carolina
Agree with Eric, Basically all measurements are same 65-79 from the rear cab mount to front bumper. In 73 4in was added to the rear of the cab behind the can mount, extending the length of the chassis and wheel base. The rear axle was also lengthened to match the track of the front wheels, that was widened in 65 with the twin I-beam. 
John
John
Cargo Master
Joined: Sep 2005
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Fleet Mechanic
Joined: Nov 2005
Posts: 1,840
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From: Lehigh Valley, Penna.
Short bed and long bed wheelbases:
65-66, 115" and 129"
67-72, 115" and 131"
73-79, 117" and 133"
The original poster asked about 66 but just for anyone else looking pre 65 cabs will not bolt right on to the newer frames. Nor will any 4x4 cab except for the 66 F100.
65-66, 115" and 129"
67-72, 115" and 131"
73-79, 117" and 133"
The original poster asked about 66 but just for anyone else looking pre 65 cabs will not bolt right on to the newer frames. Nor will any 4x4 cab except for the 66 F100.
Fleet Mechanic
Joined: Aug 2016
Posts: 1,480
Likes: 6
From: Great White North
Some people are also bolting 1966 trucks onto 2003-2011 Ford Crown Victoria frames. I have never done it so you will have to search the internet.
ANY frame swap results in the loss of the V.I.N. that is on the frame of your truck. Many jurisdictions look at the frame V.I.N. only for registration purposes.
ANY frame swap results in the loss of the V.I.N. that is on the frame of your truck. Many jurisdictions look at the frame V.I.N. only for registration purposes.
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Fleet Owner
Joined: Jun 1999
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From: Creedmoor, North Carolina
I can not address a 4x4 shorty, I will give you that.
John
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Cargo Master
Joined: Sep 2005
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Looks like it is actually 2", but I didn't change it and it wasn't noticeable.
Fleet Mechanic
Joined: Nov 2005
Posts: 1,840
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From: Lehigh Valley, Penna.
You don't have to imagine anything, it's two inches longer on the shortbed wheelbase starting in '73. That's why the photo I posted of the '66 shortbed body mounted on a '79 shortbed 4x4 chassis has a larger gap between the bed and cab.
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jalampi
1973 - 1979 F-100 & Larger F-Series Trucks
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Jul 31, 2002 06:34 PM