F1 rear suspension

Just curious about my f1 rear suspension. I see that TCI makes a whole setup with new shackles, springs, etc. I plan on using a camaro rear end and wonder if I need to get into something like that or can I just have a spring pack made up and cleanup the existing shackles? Any help is appreciated. Zeke

 

New is nice to have, but nothing wrong with new springs and new bushings in the shackles.

 

I just removed every other leaf spring, gives me a soft ride and lowered the rear some. working fine for me. I also added leafsping liners from nolimit engineering. work great Ed 50 f1 mustang