rear end height High or low or inbetween.

yeah, those tires are long "out of print" there is a date code on all tires, usually in a noticeable stamped pad Prior to 2000, its a 3 digit (wk/y, ie. 428 would be 42nd week of 1998 ). after 2000 is a 4 digit wk/yr ie. 4208 would be 42nd of 2008. Tires that are >10 years old are considered "expired"....http://www.tirerack.com/tires/tiretech/techpage.jsp?techid=11