Guys I have an 8" Bison chuck that I need to find some replacement jaws.The ones that are on it right now are aluminum which they must have been turned several times for numerous projects.So I need to locate a set of jaws that are the tongue and groove type.I went shopping on ebay and found several that looks like they will fit but how can I tell?The ads say for 8" chuck but unknown brand,so are all jaws thats for 8" chuck tongue/groove type will fit?Guys what information do I need to find the right ones and where do you go shopping for jaws?Thanks guys for some direction---kroll