Good used Non-lock up, neutral balance 727 (24-spline) 11" 2500 stall torque converter. It has the 10" diameter flex plate bolt circle with 7/16 bolts. Flex plate and bolts are included. I got this converter with a rebuilt transmission that I bought. I am not 100% sure on the brand (can't find any #'s on it), but the guy I got it from thought it was a Mopar Performance. $125 shipped in the U.S. Send PM if interested.