4wd conversion
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Senior User
Joined: Jul 2015
Posts: 102
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From: Victoria, Australia.
4wd conversion
Hi guys I was wandering how hard is it to convert a 2wd f100 into a 4 wd? If I use stock C6 gearbox and strap on a transfer case and get a driveshaft made up?
Mountain Pass
Joined: Aug 2016
Posts: 173
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From: Meridian ID
Let me know how this progresses. I've had the same question rattling around in my head.
I would think you'll have to replace all the steering goodies, how much $$ are you looking at for something like that from a wrecking yard?
I would think you'll have to replace all the steering goodies, how much $$ are you looking at for something like that from a wrecking yard?
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Joined: Jan 2001
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From: Virginia
Your transmission plans will not work. You will need a 4x4 transmission. Once you get that, it will bolt in, change the rear driveshaft, add the front driveshaft and you are ready to go, all a bolt in.
P.S. You need to find out your rearend ratio, the front axle ratio needs to match. If that is a problem, just bolt in the rear axle from the donor that you get the front axle from. Check your wheel bolt pattern, some f100's had a Ford car pattern. If yours does, I would go ahead and swap the rearend out also, the 4x4 axle will have the Ford truck lug pattern.
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Joined: Jan 2001
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From: Virginia
I will back away from saying the above axle will not fit up. I see you are from Australia, they did things differently down there and that axle pictured may bolt up, we didn't have some of the features you guys have down there. I see in the picture it's a right hand drive axle, the steering box is on the other side.
FTE Legend
Joined: Nov 2015
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From: Angier, NC
Now you can change the out put shafts but it will take a rebuild of the trany to make it happen.
You will still need the adaptor between trany & transfer case.
Dave ----
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Although if you go back old enough (early '70s?) the 4WDS trucks had divorced transfer cases, so they actually used 2WD transmissions.
And to answer the inevitable question, yes, you could get a divorced transfer case and use it with a 2WD transmission. But it involves some fabricating to make a new crossmember that's strong enough to hold the transfer case in place, then you need to deal with three new driveshafts. So stick with a more modern transfer case and get a 4WD transmission.
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