Here a couple pages from a 1937 Engineering Book I have. I believe the manual was given to dealer to show all the improvements of the '37 Chevrolets.
Attachments
1929-1937 frt springs.jpg (229.72 KB, 86 downloads)
1929-1937 frt springs 2.jpg (288.43 KB, 87 downloads)
1929-1937 frt springs 3.jpg (213.69 KB, 86 downloads)