These Toyota guys should be promoting their junk. Put a Toyota 8" in the rear out of a 3rd gen 4Runner. Can be had in factory 4.56, and you get the axle size and splines of a D44 with the diff clearance of a D35, plus factory e-locker option (maybe just mod it for a cable shift?).
People do the Ford just because it has the same bolt pattern (5 on 4.5), but you still have a c-clip axle and you'll love an inch of diff clearance compared to the Toy 8".
The 30 is fine until you have seriously upgraded the rear.