I am, yes, but I don't know what year the axle is. Since we've narrowed it down, how do I tell the difference?
Also, if I wanna replace the hardware inside, I guess I'll need to know which to get. Everything looks okay, but for safety's sake, new cylinders are probably I order.
Yes, you're correct that the bolt pattern is 5 x 4.5. I have one of those wheel disk thingies that you put over the studs.