You are right on my66gt, I order a 5 hp IR, and refuse delivery two times. The drivers had damage the units. Then I just buckle down and got a Quicy 5hp two stage. I paid for it, had a problem with the reefs, and their tech was out the next day. Makes all the different in the world when using your air tools, or sand blaster. But it is costly, here is a nice one for the money by IR. Part #TS4L5
Item# 1592130A

http://www.northerntool.com