Greetings...Got my C20 here, it's a Custom Camper, I believe it is a 14-Bolt Dana 60? I need to know what I have factory, I am looking for a new gear set for Hwy useage(also considering Gear Vendors OverDrive to add as well), I need info to determine what I have in order to find out what is availiable aftermarket. I would like to get a 3.00 to 3.73 area gear ratio and am interested in installing a posi unit. I have also seen on eBay, disc bracket set-ups; Is there a good set-up that this Board recommends ? and for all my questions...Thanx!