coil over

It won't be cheap but you have a few options

https://www.reillymotorsports.com/store/home.php?cat=269

HemiDenny's HDK Suspension

http://www.forabodiesonly.com/mopar/showthread.php?t=231425

http://www.bobsprofab.com/

http://www.qa1.net/qa1_motorsports/...ion-components/k-members/mopar-k-members.html

http://www.freakride.com/product-category/make-model/mopar/a-body/