i use my truck daily 460 big block we all know doesnt do great on milage right now im getting 11mpg im going to change the rear end gears the problem i have is; i was wanting to know could a set of gears out of a dana 60 non floating axel work in a dana 60 full floating axel

 

I think they would, however I would strongly advise you you get something in the 3.73 range and then get an overdrive unit.

 

i would get a gear vendors overdrive but there almost 3 grand for one is there any overdrive transmissions that would fit my truck?

 

Cheap swap to overdrive would be a ZF5. Bolt in swap.

Better swap would be an NV4500. That gets expensive but the trans is a lot stronger. Still cheaper than a gearvendors though.

 

i would like to stick with an auto to keep the truck somewhat stock but a manual would be nice now is the bolt patteren on a 7.3 the same as a 460?

 

No, the diesel uses a different bellhousing bolt pattern.
There is an option for auto trans with OD. The E4OD was used behind 460's in later model trucks. Only drawback, they require a controller to make them work, as they are electronically controlled.

 

Non floating axle with a 460? That's a first. Usually all 460's had full floaters.

 

I'm thinking he has a Dana 60 NF, and wants to swap the gears into his Dana 50-60 Full Float rear in his 460 truck?

 

would the five speed off of a inline 6 work on my 460 this is my first 460 i have always had inline six trucks

 

No, you'll need a 5 speed out of a 460 to fit a 460. No other engine had the same bell housing that the 460 has. (no other big block had a 5 speed, so only 460 5 speed will fit)