This is a most appropriate post to me. I was wondering how to find out what my rear axle was to match a new solid front axle. Thanks Miranda and Smokey
3.55 are a little high for towing but you have a 460 and live in a flat area so you should be fine.
4.11 or even 3.73 are more preferred for towing but your gas milage would be even worse with the lower rear gears.
The 460 never got good gas mileage 8 is fair for that engine some get a little better some worse.