RAM PINTO/FORD 2300CC COUPLER CLUTCH1"-23 SPLINESIMPLY THE SMALLEST & LIGHTEST OVAL TRACK CLUTCH SYSTEMTHE RAM COUPLER IS A COMPACT, LIGHTWEIGHT CLUTCH SYSTEM FEATURING SPLINED LOCK-UP ENGAGEMENTTHE CONE CLUTCH PROVIDES THE INITIAL ENGAGEMENT TO GET THE VEHICLE MOVING WHEN THE CLUTCH PEDAL IS DEPRESSEDPOSITIVE LOCK-UP IS ACHIEVED WHEN THE PEDAL IS RELEASED & THE SPLINED CONE ENGAGES THE SPLINED TOP PLATETHE RAM COUPLER IS JUST 5 LBS. & 4" IN DIAMETER, WHICH IS ABOUT THE SIZE OF THE CRANK FLANGE ITSELFRAM RECOMMENDS THAT THE COUPLER BE USED IN VEHICLES UNDER 2,600 POUNDS OR WITH ADEQUATE LOW GEARING TO AVOID OVERLOADING THE CONE CLUTCHIF YOU ONLY USE 3RD & 4TH GEAR & YOUR CAR IS HEAVY, ACCELERATED WEAR WILL OCCUR TO THE FRICTION LININGBECAUSE THE DIRECT DRIVE CONNECTION IS NOT SYNCHRONIZED, ENGINE & INPUT SPEEDS MUST MATCH BEFORE RE-ENGAGEMENT