For the rear springs you can use the attached excerpt from the 1948 Vehicle Info Kit as an indication. Note that it's a "loaded" dimension, so if your tailgate is less than 25-3/4" above the ground with the truck bed empty, then your rear springs are definitely sagged.
Kevin 1951 Chevy 3100 work truck Follow this saga in Project Journal Photos 1929 Ford pickup restored from the ground up. | 1929 Ford Special Coupe (First car) Busting rust since the mid-60's If you're smart enough to take it apart, you darn well better be smart enough to put it back together.
