Hello Wolfgang, Please see the attached images. I hope you can see them ok. This is how the spring should be installed. I do not know if the difference of 9 coils will make any difference. You can use different springs. Some person said here a couple of years ago the spring for the Jeep would work and was much less expensive. Please tell us if you have any questions.
~ Jon 1952 1/2 ton with 1959 235 | T5 with 3.07 rear end