jeremi3210 717 #1 Posted October 8, 2012 Anyone know what size drive belt fits a c121 auto? Share this post Link to post Share on other sites
varosd 1,185 #2 Posted October 8, 2012 Wheel Horse replacement belt 1978/79 : 7478 I have'nt had to replace even my Dad's B-80 drive belt, but I spent the extra couple bucks and bought a back up OEM belt based on past performance and various RS threads on the subject of OEM vs after market belts. V 1 Share this post Link to post Share on other sites
