So this has been bugging me a while and I'm wondering if you guys have any answers. Im the original owner of my 1985 GN, purchased it from the dealer in 85. I've counted the gears on my rear end (more than once) and Im positive its a 3:73 ratio unit. Any ideas how it left the factory with that ratio instead of the normal 3:42? Attached is a photo of the original window sticker showing the posi unit as an option.