Hi Kirk, Sorry my goof what i'm looking for is variator pulley P/N st 16b both of mine had been cracked then welded then cracked some more. I just got this snow trac this summer It was a project that a guy had started and then ran out of steam. It was completely disassembled stripped/blasted/painted. All new bearings/bushings. New 1835 dual port and rebuilt transmission, Now I have to install engine tranny and tracks. Thanks for reply. Terry. Snow trac #262