Hi Daniel,
my Parts Book and Conversion chart shows :-
thrust bearing 4B3665= New Departure(ND) 3209
flywheel pilot bearing assembly 1B3738= Hyatt(Hy) SC-403 or separate parts:- 1B3739 Roller Ass.= Hy SRA-403 and 1B3740 Race= Hy OR-304
Hope this helps.
Cheers,
Eddie B.
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