It’s a relatively easy swap, if you have the knowledge, and tools. What axles would be best is totally up to you.
Let me put it in a different way, without much more info from you, the sky is the limit. I could be telling you the best axles are some billet portals with a price tag of about $20k each axle. I doubt you’re ready to spend 40K just on axles, with no supporting parts to go with them.
Adding descriptive things like, what your plans are, how high your jumping when you’re doing the Baja 1000, how much horsepower your twin turbo Ls7 is going to make, what RPM your planning on shifting while hitting the hills during the King of Hammers, or when you’re planning on debuting your gold plated chassis at on the yearlong worldwide lowrider tour.
So, type of info, budget, your skill level all helps when asking these type of questions.