R37135 has 58 Coils, 1.5″ Diameter
NOTICE!
To determine the correct springs needed, count the number of coils the existing spring has and measure the outside diameter of the spring as shown in the drawing below. The number of coils may be + or – one coil.
DO NOT measure the length of the existing spring. Due to paint, dirt, corrosion, stretch or change in style, the length of the existing spring will most likely not be the same as the replacement spring.
If the number of coils on the existing spring does not match the chart below, use the replacement spring that has the same diameter as the existing spring with the closest number of coils. All kits will have two springs and necessary hardware.