When you decide what you want to spend, ask about the spring rate. Since they list them for '36 -'46 they may be generic and not right for any of them. Spend some time at the GM Heritage site looking at the information packets for each year of truck. The '37s used very heavy spring rates, almost twice what the '46 uses. I had a new set of stock springs for awhile, it was so stiff you couldn't stay in the seat. I had it down to 4 leafs out of 7 before it road decent, thats when I went to Detroit Spring. The deflection rate is what you want to look at. Deflection rate is XXX lbs to compress the spring 1inch, less weight, softer springs, better ride. It helps to know the weight on each axle or even each wheel. I used four wheel scales I borrowed from a dirt track racer. Once each corner was weighed, I put the chassis on stands, unhooked the shackles and shocks, and weighed each axle assembly. This gave me the weight of just the truck ( sprung weight ) and the unsprung weight of the axles, tires, brakes, shocks, and 1/2 the springs. A good spring shop will know how to use the information.
Joe
Last edited by Joe H; 09/23/2023 1:15 PM.
