Nice looking car! My Chevette based TD is on blocks in storage at this time,(upstate NY is kinda cold for these cars) so I can’t help you now. When warmer weather gets closer & its back on the wheels again I will be happy to check the dimension you are looking for. I know my springs were cut to the assembly specks.
I have pic’s of mine under Bills Baby in the photo section at the mgtdkitcarclub website to help compare.Bill Hursh39459.6667824074