73 K5 to 3/4 swap???

[jmanthony65]

I bought a 73 K5 with 35s but it still has the 3.07 gears needless to say it doesn't exactly get up and go.. I was thinking I probably could pick up a used set of 3/4 ton axles with 4.10s already for around the same money as swapping in gear sets. I was wondering what year models if any will pretty much drop right in or what complications or issus I will need to look out/prepare for? I welcome any opinions and help...