79 K-10 parts on my 73

[TJ805]

I've been picking a 79 for parts and I wonder if the front and rear leaf springs will work on my '73.

I believe the 73 to be stock with two leaves in front, but I actually have 8 in the rear. They're not in the greatest condition, but I like how the truck sits.

Do the 79 fronts have different arcs?

Pics are the 73.

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[Nonstop]

The springs should be interchangeable. Looking at the pics of the front, they do not look too bad - they are rust, but do not appear to be sagging much, if and, judging by distance to the stop.