I think the reason ther has not been an answer is those are hard questions to answer. Each of those questions are too generic. Fpor example, you asked if it is worth the expense...well, for some people it is worth it weight in gold, for others it would be a waste to upgrade the axles. "best" is an opion considering there is differnt benifits to each axle. "Best" axel can be different for differnt people. If you asked which axle is strongest or which was cheapest then you would get more replies. Maybe even, what is the strongest axle for $xx.xx budget.
There are axles that will never break under your JK, does not make them the best because then you have clearence issues. There are axles that could be pulled from other vehicles like a 14 bolt that would rock socks, but are you willing to do all that fab work? There are after market axles that are so hot that girls around town would jump in your rig, do you have an unlimited budget? For most people upgrading the D44's from a rubicon will be more then they ever need, for others, upgrading the d44 would be a waste of money and they should move straight to a d60
My point is, axles are usually about balance. YOu may have to give up a little to find what works best for you. Only you can reallty answer the "best" question because it has to do with your own balance of money, ability, time, driving style, end goals, etc.
I think the starting point is detirmining what the end goal of your vehicle build will be, tire size, engine mods, etc.. also decide what your budget is and how hard you plan on driving it. I think once you know those things you will have a starting point to decide on which axles are in that price range or what modifications can be done. for example..."I am putting in a hemi, I plan on running 42's, I bash the hell out of my rig jumping it off sand dunes Poly style, I have a budget of $8,000...what is the best axle set up". Or, "I trail run on weekends, occasionally I hit a 10 rated trail, I will run 37's on the v6 and worry about the axles. I only have $3000 to spend, what is the best axle setup?"
There is a ton of differnt axles and there is a billion ways to mod them. So there is so many ways to choose or build an axle that nobody can answer whats "best" for you. If you give us something to go off of we may be able to offer some tips and advice
Last edited by WTF_LOL; 02-28-2009 at 08:06 PM.