Single cab to extended cab swap

150 · Feb 27, 2020

I currently have an 89' f-150 single cab short bed. Its on 1 tons with a 3 link front and chevy 63s in the rear on 37s. I am wanting to have some more cab space for hauling kids and dogs and am wanting to swap an extended cab on there and build a flat bed.
If I am going to swap the cab I figure I might as well go to a newer model cab something around a 95'. I am sure I will probably have to add another body mount at the rear of the cab but other than that I don't imagine mounting it will be all that difficult. What other problems might I run into swapping a newer model cab on there such as wiring or linkage or other things like that?

Thanks for the help

landen300 · Feb 27, 2020

I believe the wiring coming thru the fire wall is different, so if you're planning to use your wiring from the 89 it probably won't just go right in there... I don't believe the round bulkhead connector on your 89 is going to be the same as a 95. I can check at home if I think about it, I have a 92 and a 95.
On a frame made for a regular cab, when you try to add another cross member further back for the rear of the Ex cab, you might run into problems with your front fuel tank if you have one.

I'm sure you can handle any of this stuff.

klutch · Feb 28, 2020

I think you might need a body lift or Chanel the floor of the extra cab because the frame kicks up right behind the cab

dieselboy740 · Feb 28, 2020

^ both what they said. Easier to get a extra cab truck and swap your stuff on.

PROJECTJUNKIE · Feb 28, 2020

I'd go crew cab, assuming you're starting with a long bed, maybe just cut the A pillars so you don't have to screw with your dash. You'll probably need to tunnel the floor in the back to avoid frame work.

You have the best dash already, the later ones crack and rattle.

There's a pic in the ford section somewhere, white truck that had a brown crew cab grafted on, driveway build, turned out decent

WHITE RHINO · Feb 28, 2020

Channeling the floor sucks. I am doing that now on my Ranger. Wish I would have just build it on the other frame.

ZSK · Feb 28, 2020

Stumbled on this thread recently while searching for a similar setup.

https://www.ford-trucks.com/forums/...273559-94-extended-cab-on-89-reg-cab-frame-questions-1989-f250-idi-build-2.html

ironfist · Feb 29, 2020

Literally nothing you have will swap over. The firewall is different, the pedal assembly is different, the brake booster is different, as is how the dash mounts.
I don't think the whheelbase on a rcsb will work with a supercab, either. The rear tires will be stupid close to the cab. Likely need a 2" boddy lift to clear the kick up in the frame where the box mounts.
You could do it but it would be easier to find a supercab and shorten the wheelbase.

150 · Feb 29, 2020

I appreciate everyones advice on this. Sounds like the consensus is that it won't be worth the work to try to swap a cab onto my frame. I think my best bet is going to be to find an extended cab truck and swap my suspension onto it. May even go with a bronco instead if I am going to go that route. Again thanks for all the help and advice.

Single cab to extended cab swap

150

landen300

klutch

dieselboy740

PROJECTJUNKIE

WHITE RHINO

ZSK

ironfist

150

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