Not at first. But you want to look at the long run. If you plan on abusing the equipment you might end up having to replace all the Suzuki hardware anyway a year or two down the road.
Before the chromoly fronts from Trail Tough came on sale if I was starting again from scratch with the 33's I would go straight for a set of axles from a Toyota and not have even bothered with building up the Suzuki axles. Little bit wider, and with our hp able to run 35" tires without a problem. Now it is kind of a toss up. The SJ axles will probably work just fine if you brace them up a bit. But it's kind of a toss up, your running at the upper end of what the Suzuki axles can handle.
You don't really know what you need until you wheel with it. I am running stock front birfields, have been for 4 years now and I've only blown one up. The rear axles took over 3 years to break, but I twisted them up but good. However, I have a trailer queen that only sees action once or twice a month.
That is the advantage of wheeling a rig for a while and building it up as you go along. You learn what you can and can't get away with. Everyone else on here can give you a different story and a different view point. Maybe someone out there abusing the new front axles can tell you how much abuse they take.
If your planning to build up your rig from mild straight to hardcore don't take shortcut. It is just going to cost you twice as much in the long run.