4L60E 4L65E, REMANUFACTURED RACING TORQUE CONVERTER, 3500-3800 STALL, 10" DIAMETER, 300MM, NITROUS READY, BUILT WITH SONNAX RACE KIT GM-RK-13 *FOR MORE A MORE DETAILED DESCRIPTION, PLEASE VISIT ONE OF OUR PRODUCT PAGES ON YOUR DESIRED SELLING PLATFORM!*