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Old 08-29-2005, 09:16 PM   #1 (permalink)
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2 wheel drive to 4 wheel drive conversion

SOMEWHERE on here I recall having seen where some one did a changeover from the I-Beam type four wheel drive front axle to a straight axle Dana four wheel drive. Any body know how to find that post? Is it a PIA to convert a 2 wheel drive (twin I-Beam suspension) to a 4 wheel drive using the dana front axlwe which has leaf springs rather than coil springs? If it isnt a pretty straight forward swap I dont want to have to do a lot of cutting and fabbing. Just thinking as I had a friend offer me a donor F-250 with the 4 wheel drive components intact. My truck is an automatic (which I dont want to get away from) and the donor truck has a T-19 with a transfer case that bolts onto the rear of it. Will this transfer case bolt to the C6 with a different tailshaft housing?

Thanks
Leo
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Old 08-29-2005, 11:31 PM   #2 (permalink)
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Re: 2 wheel drive to 4 wheel drive conversion

You'll have to remove the shackles from the donor and put them on your rig, but the holes should already be there. You may have to drill a few holes in the front crossmember to mount the center supports, but if you have the donor to look at it'll be pretty cut and dry. If I remember correctly those center supports mount through holes on top of the crossmember. You may have to raise the engine to get the bolts in there. I don't know about the steering linkage between the 2wd and independent 4. I'd just park your rig next to the donor and verify all bolt holes and steering. This is all if you want to go with the leaf springs. For the most part everything is pretty cookie cutter when it comes to the chassis holes.

As far as the transfer case...I'll let someone else answer that. I'd think you could work out a swap with someone in the classified section.

Good luck, sounds like a rewarding project.

Paul
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Old 08-30-2005, 10:51 AM   #3 (permalink)
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Re: 2 wheel drive to 4 wheel drive conversion

[ QUOTE ]
You may have to raise the engine to get the bolts in there.

[/ QUOTE ]

I just changed my IFS front to a solid front, and the bolts for the IFS pivots can be reached and removed/installed on the crossmember without lifting the engine.

Zigg [img]/ubbthreads/images/graemlins/smile.gif[/img]
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Old 08-30-2005, 03:06 PM   #4 (permalink)
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Re: 2 wheel drive to 4 wheel drive conversion

[ QUOTE ]
[ QUOTE ]
You may have to raise the engine to get the bolts in there.

[/ QUOTE ]

I just changed my IFS front to a solid front, and the bolts for the IFS pivots can be reached and removed/installed on the crossmember without lifting the engine.

Zigg [img]/ubbthreads/images/graemlins/smile.gif[/img]

[/ QUOTE ]

Same here! NO engine lifting required. As far as my conversion, all holes were already drilled as well, but I was doing a D44 to D60 swap, not 2WD to 4WD, so there may be a difference. Leaf spring brackets will definetely be needed, the D60 also has a track bar that bolts to a bracket that bolts to the back of the crossmember (is this a connect the dots drawing or what!). There are three bolts holding this bracket on, and they run front to rear. The D44 uses holes that run up through the crossmember, as well as one bolt running front to rear IIRC.
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Old 08-30-2005, 04:14 PM   #5 (permalink)
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Re: 2 wheel drive to 4 wheel drive conversion

Thanks for the catch fellas.

Mine was all apart when I did my 60, so I wasn't sure on the engine. I remember reading a write up on a 44/60 conversion where the guy just cut off the center supports. That's why I figured you may have to lift the engine. I did have to drill some holes for the 60 sway bar though. Both in the crossmember and the chassis rails. My chassis is an '84. Maybe the later models had the holes already there. [img]/ubbthreads/images/graemlins/shrug.gif[/img]

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Old 08-30-2005, 05:23 PM   #6 (permalink)
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Re: 2 wheel drive to 4 wheel drive conversion

My F350 was an 85, after the production break in Feb. I believe, I no longer have the cab to check, it was falling off the frame and is no being recycled, probably into a ________ (insert favorite brand here, my fire extinguisher is empty)!
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Old 08-30-2005, 07:07 PM   #7 (permalink)
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Re: 2 wheel drive to 4 wheel drive conversion

[ QUOTE ]
Will this transfer case bolt to the C6 with a different tailshaft housing?

Thanks
Leo

[/ QUOTE ]

Well, yes and no. It can be bolted to the c-6, but you will also need the output shaft for the 4x4. While the tailhousing is a simple bolt-on, the tailshaft requires complete disassembly of the trans. This is not something I would recommend, unless you are a skilled tranny man, otherwise you might want to have that done...
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