i climbed the axle tree. and dont have any regretts doing so.i have learned ALOT along the way. started building the mazda in december of 09 and had 2 d-30's under it before i swaped in the FW 44. i have yet to break anything on it yet. i feel that i run it pretty hard but 99% of the wheeling around here is mud, i dont think i would have the same reasult if i were to be in rocks. i have yet to have the urge to swap in a 60.
since i did my SAS i have sucessfully swaped in 3 sets of 1/2 ton axles into other vehicles as well. and none have had any failure's yet. however myself and the 3 others are all still v-6's (1 4l bronco ll and two 4.3 s-10's)
i'm running and have been running 37'' iroks one s-10 is running 38'' q78's bronco runs anywhere between 37'' trxus M/T's to 33 bfg M/T's and the other s-10 is running 37" military takeoffs. and i will repeat myself we dont have much for rocks up here so most of our wheeling is Mud, hills, and washouts. dont know how they would like crawling.