any improvement on the jk's balljoints than on the tjs? also is there a ball joint differnce between the d30 and d44 if anyone knows yet? also are the tubes on the front d44 the same size as the d30 or are the larger? also how is the tirerod on the jk's i hope better than the pixey stick ones on the tj!
thanks!

 

I can't speak to the D30 in the new JK, but the 44 is very much improved over the old Rubi 44. It is high pinion and has larger u-joints in the steering knuckles. Not sure what size, but they are substantially more beefy than the '06 D44. Steering is not the "K" linkage, but a crossover much like teraflex setup with 2 separate arms. The tie rods are absolutely enormous compared to the TJ setup and it looks like the ends are larger as well. Ball joints could be the same - hard to tell for sure. Same for the tubes. My TJ is gone, so I don't have it to measure against. I'm sure someone here still has one laying around!