Ok here we go. 
 This first one is a brand spanking new 1970 R/T being given to Bobby Isacc as part of his prize for winning the Texas 500. See how crooked the badge is?  
 
  Now this is factory photo of a R/T. OK it is a pre-production photo taken in the summer of '69 but I have seen the odd Challenger with a badge this low on more than one occasion.  
 
  This next one is a factory photo from 1969.  
 
  Lets move on to the T/A. I have 3 photos here for you. The first one was taken in 1970. The other two could be restorations but I don't know.  
 
  
  
  I hope this helps??