seat tracks, again

[SamuelsMA@aol.com]

Listers:
 
Thanks for your help so far on this one.  A specific question  now:  If you 
move your seat all the way back, what is the measurement from  the seat back to 
any interior reference point behind it.  If I know what  this is supposed to 
be, I can see if mine goes back as far as it should.
 
Thanks!
 
Michael
'76 Tahiti blue
CF 57044U