after a couple hours of scrounging threw the local mower repair shops parts machines i couldn't find one with a suitable ratio .
so i went ahead and ordered a new replacement set . the shop owner sure is a nice guy . he spent at least two hours of his time trying to help me out .
and judging from the $32.65 price of the parts i ordered he did it for about a net profit of $5
Monday i am going gather up my dull chainsaw chains and throw some business his way along with some coffee and doughnuts . he went above and beyond what was needed trying to help .
end of the week i'll have the worm and gear and i can get started with actual work .