BEVEL GEARBOX, FULL SPLINE INPUT SHAFT WITH LATCHING PIN GROOVE, REPLACES PART # 87545091R, CORE CHARGE INCLUDED, $700 REBATE IF YOUR CORE IS RETURNED WITHIN 30 DAYS, FOR FULL REFUND CORE MUST BE REUSEABLE EXCEPT FOR MAIN HOUSING, CUTTERBAR DRIVE GEARS & BEARINGS, RACES & SEALS. THIS PRODUCT HAS OUR DD-87054839RETRO REPAIR KIT INSTALLED FOR BETTER THRUST TOLERANCE ON THE OUTPUT SHAFT