UNIVERSAL JOINT IS ATTACHED WITH A SLIP SPLINE AT THE CENTER WHICH ALLOWS THE JOINT TO EXPAND AND CONTRACT; OPTIONAL RUBBER-SILICONE BOOT IS AVAILABLE FOR INVOLUTE SPLINE CENTER CONNECTOR; LEFT ENDSHAFT IS 4.080 IN. MIN.-4.120 IN. MAX. LONG; 0.7480 IN. MIN.-0.7490 IN. MAX. IN DIA. AND HAS A 0.2535 IN. MIN.-0.2545 IN. MAX. DIA. HOLE 2.192 IN. MIN.-3.166 IN. MAX. FROM THE END; RIGHT ENDSHAFT IS SAME DIAMETER AS LEFT ENDSHAFT; 2.180 IN. MIN.-2.219 IN. MAX. LONG AND HAS A HOLE 0.764 IN. MIN.-0.800 IN. MAX. FROM THE END; CONNECTION END TYPE: SHAFT