Anybody able to help me out?

Have a 69 Charger here at the shop with a Gerst front suspension under it;
Gerst

and would like to know the part# for the 2-4" dropped spingels, currently it has the 0-2" spindles under it but sits to high.

Already used the contact form, send emails and even spoke to some dude without any luck so far so hope somebody at Moparts knows it?

Thanks in advance!