66 frame vs 72 frame
Fleet Owner
Joined: Jun 1999
Posts: 24,552
Likes: 74
From: Creedmoor, North Carolina
Da dummy can give you some numbers saying they are different, OK.
The chassis for our level of interest are pretty identical end to end with mynute differences if any.
What are you hoping to do?
John
The chassis for our level of interest are pretty identical end to end with mynute differences if any.
What are you hoping to do?
John
Elder User
Joined: Jul 2006
Posts: 930
Likes: 0
From: East Helena MT
I know on long wheel base models, the wheel base on the 67-72 frames is a few inches longer. If you swap the 65-66 sheet metal over you have to get a little creative with the box to make it look right. They are the same width, wide in the front until the rear of the cab and then the back section of the frame gets slightly narrower.
I am sure other members can go into more details but that is what I know about them.
Jeff
I am sure other members can go into more details but that is what I know about them.
Jeff
Fleet Owner
Joined: Jun 1999
Posts: 24,552
Likes: 74
From: Creedmoor, North Carolina
Splain yourself!
John
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Senior User
Joined: Oct 2007
Posts: 359
Likes: 0
From: garden valley, ca
not swaping to a 72 frame. just looking into IRS. there is another member witha 72 that a company is working with to figure out some bugs with there settup and the trucks. if they get it dialed in i might use it.
Senior User
Joined: Sep 2007
Posts: 456
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If anyone has some measurements of a slick side suspension please post them here. The measurements that I am after are are from outside of frame rail to outside of frame rail.
Front Frame rails
Radiator support:
upper spring perches:
Just forward of cab mount bracket:
Rear frame rails.
Most rear cross brace:
Cross brace just after the cab:
Just over the rear axle:
Front Frame rails
Radiator support:
upper spring perches:
Just forward of cab mount bracket:
Rear frame rails.
Most rear cross brace:
Cross brace just after the cab:
Just over the rear axle:
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Senior User
Joined: Oct 2007
Posts: 359
Likes: 0
From: garden valley, ca
are these measurments in regardes to truckirs. pm me i can get most of the specs from my 66 f100.
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Brett Foote
Senior User
Joined: Sep 2007
Posts: 456
Likes: 0
That they are, I am trying to find out what the difference is between my frame, your frame, and the 74-79 frame aswell.
But, the frame is not the issue with the ride height problem I came into. It is the Panther subframe that determines where the suspension has to be. Even if the frames are very close or just a bit off in dimensions it doesnt solve the issue unfortunately.
But, the frame is not the issue with the ride height problem I came into. It is the Panther subframe that determines where the suspension has to be. Even if the frames are very close or just a bit off in dimensions it doesnt solve the issue unfortunately.
Fleet Owner
Joined: Jun 1999
Posts: 24,552
Likes: 74
From: Creedmoor, North Carolina
The 73-79 frame was widened behind the rear cab mounts, I believe by 4". This was done as part of an effort to make the rear track as wide as the front that was widened in 65 with the twin Ibeam.
John
John
Elder User
Joined: Nov 2005
Posts: 998
Likes: 2
From: Benton, AR
My 79 measures as follows. Going from back of truck to front.
Cross member:
1=37 1/2"
2=37 1/2"
3=37 1/2"
4=34" This is the cross member that the rear cab mounts bolt to
5=34"
6=34" This is the engine crossmember
So between the back of the cab and the front leaf spring mounts you gain 3 1/2"
later
Cross member:
1=37 1/2"
2=37 1/2"
3=37 1/2"
4=34" This is the cross member that the rear cab mounts bolt to
5=34"
6=34" This is the engine crossmember
So between the back of the cab and the front leaf spring mounts you gain 3 1/2"
later
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