Hmmm to be honest i think it's the 1410, i wish it were a 1310 then i'd just hook it up to my yota driveline. I'm hopin i can grind off the rear yoke and sleeve and maybe weld it to the yota rear...that is if the chevy sleeve slides in my driveline.? About how big is the diameter? I'm trying to find a cheaper way to do this chevy to toyota conversion, a flange adapter is 200 bucks, way too much.