4x4 rear leafs in 2x4

[rgreathouse]

I have a 72 2wd 1/2 ton.... With factory rear leaf spring suspension, I would like to know if rear leafs from a 4x4 would fit? Mine are 52" long if i had 52" long 4x4 8" lift leafs would they fit ok and lift the rear 8"?
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[bigblocksean]

I do believe the spring centering pin is in the wrong location, therefore your axle would not be in the correct location in the wheel well. I ran into that issue on a 2wd to 4x4 swap recently. The 2wd spring hangers are in a different location then the 4x4 frame. Hope this helps.

[rgreathouse]

Ok, what did you end up doing?
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[bigblocksean]

I had a 4x4 rolling frame and ended up using the half ton 4x4 springs. only reason I was going to consider the 3/4 2wd springs is because they were a little beefier and would of matched the front 2 in lift springs, ordered an add a leaf and hopefully level it out where I want it.

[DarkHawk]

I also have a 1/2 ton 72 2wd with leaf. I don't know about the 1/2 ton 4x4 springs but I measured some off a 3/4 ton 4x4 and they were wider than the 1/2 2wd springs. I assumed the 1/2 and 3/4 ton 4x4 springs were the same width because when you order new ones they specify for 1/2 or 3/4 ton.

[Axle]

There are two spring widths, 2.25" and 2.5" and two spring lengths. 52" and 56" long springs. They should swap out if you match for width and length.

I've got 3/4 ton, 4x4, 6 leaf, 2.5" wide, 52" springs in my 2wd now.

Alex.