More from MCI
http://www.mcicoach.com/fyiFromMci/maintMatters/0315.htm (http://www.mcicoach.com/fyiFromMci/maintMatters/0315.htm)
I would like to find out when MCI went to a secondary air tank for the front brakes on DD-3 equipped buses, and had the second inversion valve. Certainly my 1980 did not have it, and I think they went to spring brakes around 1990 or so. Be good to understand that change period.
Brian
The 1995 MCI still had DD-3 I am going to change to spring later this year