Exploded View of Steering Column
You can download several service manuals, but the special stuff for the Barracudas is not in em
Some of these are thanks to AbodyJoe. The 69 manual is likely to be your closest help
70-71 Mopar Parts
[ame="http://www.abodyjoe.com/pictures/Misc.%20car%20info/1970-71MoparParts.pdf"]http://www.abodyjoe.com/pictures/Misc.%20car%20info/1970-71MoparParts.pdf[/ame]
72 Service Manual
[ame]http://www.abodyjoe.com/pictures/Misc.%20car%20info/1972%20Plymouth%20Chassis%20Serv%20Man.pdf[/ame]
69 Dodge Serv. Manual
[ame]http://www.abodyjoe.com/pictures/Misc.%20car%20info/69%20dodge%20service%20manual.pdf[/ame]
70 Dart Challenger manual
[ame]http://www.abodyjoe.com/pictures/Misc.%20car%20info/70%20Dart%20Challenger%20Serv%20Man1.pdf[/ame]
71 Dodge Body Manual
[ame]http://www.abodyjoe.com/pictures/Misc.%20car%20info/71DodgeBodyManual.pdf[/ame]
Over at "MyMopar" are some others:
http://www.mymopar.com/index.php?pid=31