Rear-end questions, help??

[Movieguymookum]

How can I tell if I have a full-floating or semi-floating axle? And is there a way to tell the ring gear size, 8.5 or 9.5 without pulling the cover and physically measuring it? The code in the glove box is GU6 and I know the axle ratio is 3:42, a posi trac and it is a ten bolt cover.


Thanks for any help you can give.

[maxwedge]

If it was full floating you would see the hub and bolts on the end of the axle. 9.5 is the large axle most likely in the 3500 series only.