James,
The 3955725 was coded "HB", has a rating of 345 pounds and was used in the following applications:
1969 Camaro Coupe Standard Front Spring for L34, L35 and L78 cars, 345-426 pounds over stock weight
1969 Camaro Convertible Standard Front Spring for L34, L35 and L78 cars, 263-344 pounds over stock weight
1969 Camaro Coupe Heavy Duty Front Spring for L48 and L65 cars, 345-426 pounds over stock weight
1969 Camaro Coupe Heavy Duty Front Spring for Z28, 263-344 pounds over stock weight
1969 Camaro Convertible Heavy Duty Front Spring for Base Engine (without JL8), 263-344 pounds over stock weight
Ed
