If for any reason JRZ cannot or will not do an inverted rear 2-Way remote res damper for your application check out Ontrack thread about his MCS 2-Way set-up
HERE
You will see the rebound adjustment is also on the bottom.
Although he is using a ture coilover rearend setup you can also use conventional progressive H&R or eibach lowering springs for a nice 0.5" - 1.0" drop over stock in the rear.