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Yeah, the front axle/sway bar/steering/brake setup all look like the 73-87 GM style.
Either off of a 3/4 ton of a 1 ton "Snow plow package" truck, since that is definitely a 44 front. BUT, it also could have come off of an IH truck since they were famous for mixing and matching.
The easy way to tell is to look inside the knuckle so you can see the back of the spindle studs. It there are 6 studs it's a GM axle, 8 it's an IH.
As for the rear, can't tell you much there except to agree with everyone that it looks like a D60. Measure the space between the spring packs, center to center. If it's about 34" with 2.5" spring packs it's from under a 73-87 GM truck (only issue i see here is GM didn't use factory lift blocks, so unless those were added later. . .)
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