Billy,
Ah you're 100% right again I dunno why I said 5/32 or 5/16 chain - yes it's 3/8 chain, as mentioned Oregon 91VXL are the chains I have - so all 3/8. Silly mistake by me.
Perhaps if I get a photo of the current sprocket setup on the Oleo Mac that might assist? I don't think it's a rim sprocket - so might be a PITA....but will get that photo - sorry for the mistakes.
