I just got an email from Arnott Air Suspension Products.
They have air bag sets for $169, normally $238.
http://www.arnottindustries.com/part_GMC_Air_Suspension_Parts_yid15_pid120.html
They have air bag sets for $169, normally $238.
http://www.arnottindustries.com/part_GMC_Air_Suspension_Parts_yid15_pid120.html