So im going to be using these on the rear of my NA with NA bilstein HD shocks, 36mm bumpstops and ebay coil sleeves... Im trying to figure out what spring length to run without coil-bind... Im looking at running 12-12.5" rear ride height with 300lb springs. I was going to get 7" length but since im new to this kind of setup i wanted to get your opinions and help. Anyone else running these? Whats your setup/experience with these? Please lmk if i am missing any info you need to help. Thank you!

 

7 inch

 

Ordered 7"... seems like a pretty common size... hope they work out.