Muncie Extended Fit Countershaft for 1" Bore Case

This new extended fit countershaft 297-3A-HP fits all 1" countershaft bore Muncie cases including the AGE Supercase.  Fits main case casting # 3885010, 3925660 and 3925661 .  The shaft has improved rear press surface as well as improved holding area in the front. The shaft is also drilled in the back to allow a 3/8 - 16 threaded bolt to be used to lock it to our Super 661 nodular iron or billet aluminum midplate. Replaces generic WT-297-3A countershaft. Included in out rebuild kit.