75 Crew swap
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Senior User
Joined: Aug 2003
Posts: 143
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From: Billings,MT
75 Crew swap
Has anyone done the frame swap on a crew cab from a 4x2 to a 4x4?? Ive been told that the frames are different from a crew cab to a super cab, but how much of a difference im not sure,, havent put a tape to them to really look.
I know if i start with a F-250 s/c long box the frame will need to be shortened right of the bat.
Anyone have any experience in this??
I know if i start with a F-250 s/c long box the frame will need to be shortened right of the bat.
Anyone have any experience in this??
New User
Joined: Aug 2003
Posts: 5
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75 Crew swap
We converted my 75 F-250 CC 2WD to 4WD about 3 years ago. However, we swapped cross members and front suspension instead of frames.
To answer your question, 2WD and 4Wd have different crossmembers to clear the front axle and to support the t-case. We utilized a coil sprung 44 from a bronco/F140 and swapped on 8 bolt outers. We removed the crossmembers from the bronco frame and installed them on the CC. Only minor modifications where needed.
The key to the swap... good mearsurements!!
Drop me a line if you are interested in more info: smiller@nsp-llc.com
ps. it goes down the road like a dream
To answer your question, 2WD and 4Wd have different crossmembers to clear the front axle and to support the t-case. We utilized a coil sprung 44 from a bronco/F140 and swapped on 8 bolt outers. We removed the crossmembers from the bronco frame and installed them on the CC. Only minor modifications where needed.
The key to the swap... good mearsurements!!
Drop me a line if you are interested in more info: smiller@nsp-llc.com
ps. it goes down the road like a dream
Posting Guru
Joined: Jul 2003
Posts: 2,222
Likes: 1
From: East Central Florida
75 Crew swap
Besides the obvious 4X4 & 4X2 differences, super cab frames are about 9 inches, or 30 inches off from everything else, I've found.
IOW, S/C SWB is 9" less than Std Cab LWB & about 30" longer than Std Cab SWB.
S/C LWB is about 30" longer than Std Cab LWB, but 9" shorter than Crew Cab LWB, although 30" longer than a Crew Cab SWB. So I would say the Suber Cab Chassis is pretty much stand alone to Super Cabs.
And why would I know this? I want to mate a 77 F250 Trailer Spcl S/C SWB & E 200-300 Club Chateau making a phantom, 1-off truck that looks like a "Brand X" Suburban, but is FoMoCo parts.
It req's mating van roof to S/C "A" Pillar & Wshield header, while getting side doors & rear wheel openings to fall in about the right place. I been dealing with LWB Vans , SWB Vans, Xtnd Vans, SWB Super Cabs & LWB Super Cabs etc. etc. etc.
How's that for off the wall engineering????
IOW, S/C SWB is 9" less than Std Cab LWB & about 30" longer than Std Cab SWB.
S/C LWB is about 30" longer than Std Cab LWB, but 9" shorter than Crew Cab LWB, although 30" longer than a Crew Cab SWB. So I would say the Suber Cab Chassis is pretty much stand alone to Super Cabs.
And why would I know this? I want to mate a 77 F250 Trailer Spcl S/C SWB & E 200-300 Club Chateau making a phantom, 1-off truck that looks like a "Brand X" Suburban, but is FoMoCo parts.
It req's mating van roof to S/C "A" Pillar & Wshield header, while getting side doors & rear wheel openings to fall in about the right place. I been dealing with LWB Vans , SWB Vans, Xtnd Vans, SWB Super Cabs & LWB Super Cabs etc. etc. etc.
How's that for off the wall engineering????
Laughing Gas
Joined: Jul 2000
Posts: 851
Likes: 15
From: Elkton, MD
75 Crew swap
a super cab long bed has 155" wheel base, and a super cab short bed has a 150" wheelbase. Probally would be easier to move the rear axle foreward then cutting the frame. You would have to build a custom rear cab mount, and mabye use a small body lift to clear the frame.
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Senior User
Joined: Aug 2003
Posts: 143
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From: Billings,MT
75 Crew swap
I think the solution I will have is having the frame clipped at the front and a frame section from a 4x4 put back in.
I know that the c/c swb is 150" wheelbase
s/c swb is 139
s/c lwb is 155
would prefer not to use a body lift,, would like it to look like it was meant to be.
Just an idea i had,, might just leave it the way it is and drive the wheels off of it
thanks
I know that the c/c swb is 150" wheelbase
s/c swb is 139
s/c lwb is 155
would prefer not to use a body lift,, would like it to look like it was meant to be.
Just an idea i had,, might just leave it the way it is and drive the wheels off of it
thanks
