Check the listing for details. REPLACEMENT BLADE,DRIVE SLEEVE,WRENCH 4000 / 3600 PLUS CONVERSION KIT(READ ALL). Condition: Open box. Listed at 74.45 USD. PLEASE READ THE ENTIRE LISTING TO MAKE SURE THIS KIT WILL WORK FOR YOUDID YOU PURCHASE A 64OZ CONVERSION KIT THAT WENT ON THE VITAMIX 4000 OR 3600 PLUS MACHINES FROM US BEFORE AND NOW NEED A NEW DRIVE SLEEVE, BLADE AND WRENCH TO INSTALL IT? THIS IS A NEW BLADE, (customized for the 4000 or 3600 series machines from Vitamix) NEW DRIVE SLEEVE (also custom made) AND HEAVY DUTY STEEL WRENCH IS FOR THAT PURPOSE ONLY YOU MUST HAVE THE CONTAINER, NEW STYLE RUBBER PAD ALREADY THAT YOU PURCHASED FROM US PREVIOUSLY. ... DO NOT PURCHASE THIS KIT OTHERWISE. ..THERE ARE NO RETURNS OF THIS ITEM...PLEASE ASK US BEFORE PURCHASE IF THIS IS THE CORRECT ITEM FOR YOU. PLEASE NOTE THE UPSIDE DOWN CONTAINER THAT THIS WRENCH IS MADE FOR' THE CONTAINER PICTURED IS NOT INCLUDED. THE BREAKDOWN COST OF THIS KIT IS; SPECIAL BLADE FOR THE 4000 $44.85DRIVE SLEEVE $19.80STEEL WRENCH $9.80 USA SELLER +14 YEARS..PURCHASE WITH CONFIDENCE