Outer Limits 4x4 Board

i have a pretty much stock standard suzuki sierra. (2in body lift and 2in extended shackles).
i decided to do an elliptic suspension set up on the rear ( 1/2 spring bolted upside down to the chassis and to the shackle)..

my problem is, it only drops 50mm from the chassis before picking a wheel. shocks are not limiting, as i have removed them.
do i need softer springs? (running main hilux leaf as elliptic and standard suzuki springs)
do i need a longer elliptic spring?
should i run hilux springs and suzuki elliptic?

any info would be great.
thanks

i think the way 2 go would be a softer spring for your elliptic section. a sierra spring would be your best bet from what ive seen

hilux main leaf is overkill way to stiff

the problem is the stock suzuki springs have no flex in em, maybe if i take a leaf or 2 out. its not a high speed car anymore, obviously