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2011 2WD to 4WD Conversion.
So, a couple of buddies and I started the conversion on my 2011 superduty. It's been pretty interesting figuring out what fits and what doesn't. Things were a little more complicated since we were installing a 4.5" lift kit at the same time.
I sourced a completed 2012 F350 front diff from the salvage yard with matching gear ratio. It came complete including radius arms. All I had to add were my own calipers, which are the same on 2wd/4wd.
I will be installing a manual transfer case with shifter for ease of installation. We've just completed the axle swap, and will be starting the transfer case/shifter assembly in a few months; mainly because it's Effn HOT!
Firstly, once you remove the twin I beam suspension and brackets, everything from the 4wd front suspension bolts in. The big difference is the spring buckets have to be swapped for 4wd versions. These are a pita to get off, and takes alot of grinding and air chiseling of the factory rivets which hold the buckets on the frame.
I ordered The 2 buckets and 2 coil spring isolators from Lakeland Ford; as they were the cheapest price online.
Qty Product # Price EA
2 Spring insulator. Upper bracket insulator. 5C3Z5415AA $40.98
1 Upper bracket BC3Z5A306B $130.77
1 Upper bracket 7C3Z5A306BR $119.39
Once the 2wd buckets were removed I used grade 8 1/2" bolts with washers to reassemble the buckets to the frame. All the appropriate holes are in the frame already. Just use an impact to crank them down tight. The track bar gets bolted to the frame as well using grade 8 bolts. One of the bolts is shared with the bottom 2 bolts on the spring buckets.
The ABS sensor harness is the same; and as mentioned before so are the brake calipers. The brake lines are different on 4wd, but we were able to use the stock 2wd front brake lines with my 4.5" lift. All I had to make was custom mounting brackets. I don't think you would have to change anything doing a non lift kit conversion.