I am going to use airbags on the rear of my 48 6400 for more weight capacity. I have them with brackets, just not installed yet. My leaf springs have 8 leaves I think. I had them made for my 1 ton like original other than being 2.5" wide instead of the 2" they were.

I don't think I would try only 1 or two leaves in the front without calling a good spring shop like Eaton Detroit Spring and asking what they thought of it. They may be able to make a better suited main leaf to handle things better when removing the other leaves and adding airbags?

•1951 GMC 250 in the Project Journals
•1948 Chevrolet 6400 - Detroit Diesel 4-53T - Roadranger 10 speed overdrive - 4 wheel disc brakes
•1952 Chevrolet 3800 pickup
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"First, get a clear notion of what you desire to accomplish, and then in all probability you will succeed in doing it..." -Henry Maudslay-