Go to my website, click on modeling techniques and scroll down to couplers. A lot of people break the drawbars...there are two sizes of drawbars, short for power car to end car coupling and long for coupling between any two cars. Drawbars can be ordered from Bachmann parts department.
Some people also have broken the actual housing into which the drawbars insert. And if the spring has come loose, this repair is difficult. Best to remove the wheelset to better access the sprung holder.
http://web.mac.com/msibnsf/iWeb/Acela%20Express,%20The%20Need%20For%20Speed/Acela%20Express,%20The%20Need%20For%20Speed.html
David Harrison
Some people also have broken the actual housing into which the drawbars insert. And if the spring has come loose, this repair is difficult. Best to remove the wheelset to better access the sprung holder.
http://web.mac.com/msibnsf/iWeb/Acela%20Express,%20The%20Need%20For%20Speed/Acela%20Express,%20The%20Need%20For%20Speed.html
David Harrison