coil spring question

[c10 custom]

hi guys i have a 1968 chev truck and it has drop spindles on the front not sure what size i would 2 1/2 but im not sure if they put a drop spring with it because the back has a drop coil and the stance of the truck is the front sits a little higher than back any advice and help would be great i was just going to order the 3 inch drop coil and figured that would bring the front down a lot more with the drop spindle thanks alot guys i appreciate the help