Truck springs

I have found springs for the truck at very reasonable prices.

the specs of the spring are:
O.D. 1.47
Wire .125
Length 2.00
Rate 43 #/in
Max safe load 47.20#

this means that the outside diameter is just a little less than an inch and a half (which translates to 6 inches in diameter in full scale), the wire is one eighth of an inch thick (or half inch in full scale), The spring is 2 inches tall (or 8 inches). It will take 43 pounds to compress the spring 1 inch, and will accept a max of 47 pounds. Because of the geometry of the rear suspension, any weight on the axle will be divided between the pivot point at the front and the spring at the back, so each axle will support MORE than the springs maximum specifications without overloading the springs.

Front springs on the truck will be out of site inside the cab, but the back springs will be out in the open. Since trucks like this used leaf springs, not coil springs, I decided to slip the springs inside lengths of bicycle tire tube to hide the spring and simulate an air bladder in an air ride suspension set up.

The springs are $5.69 each, and I need six of them. I have made an offer to the supplier that I am waiting for a reply on. If the supplier will provide the 6 springs at no charge, I will advertise their company permanently and prominently on my truck. I will post the response when I receive it.