THESE ARE N.O.S. POLARIS ALUMINUM RAILS THAT FIT:

       1976-79 TX MODELS WITH CLEATED TRACK

REPLACE THOSE OLD WORN OUT OR BROKEN RAILS.
THESE INCLUDE THE ORIGINAL PLASTIC SLIDE. 
THESE HAVE BEEN OBSOLETE FROM POLARIS FOR OVER 20 YEARS.
FINISH THAT TX RESTORATION THE RIGHT WAY!