Airlift bags model #?

[thejanster]

Hey any of you guys use airlift bags in rear? if so what part # dou you use? if not what size do I need? was looking at 4" x 11"

 

[hotrod275315]

here the "Airlift" brand part number, 60844, its the double bag kit, just got a set from Summit, just under $78.00