Sal,I'll assume the truck was on stands on a level surface so it's unlikely the chassis will have tweaked unless it was twisted before you jacked it up.
Bear in mind the rebuilt springs have also been decompressed for three years they simply could dry and be binding.

Have you driven it since?


1950 Chevy Advance Design 3100 in Scotland
In the Stovebolt Gallery
More pix on Flickr.
I've definately got this truck thing in my blood ... my DNA sequence has torque settings
"Of all the small nations of this earth,perhaps only the ancient Greeks surpass the Scots in their contribution to mankind" Winston Churchill.