I have 35s with a lunchbox and I have broken ujoints and the rear end is fine. I would be more worried about the d30. But at 35s that's the max usually. I haven't broke anything in the front ever. Just carry spare driveshafts and axle shafts and you'll be fine with 35s

Yeah that's a fair point. I'd just like to have the 44 in the back eventually so I can tow a small trailer for camping trips and what not. By small trailer I mean something like a dual-axle version of an R-Pod.