well coming from the Dana/spicer world of rock crawling I have never actualy wheeled on a set of yota axles.

but I can atest to the higher numarical ratios being weaker. I have run 3.73's and broke my first set, then went to 4.56 and broke two rear yukon R&P's and 3 front's. then my buddy running the same axles put in some 5.38's and broke the front HP pinion every outing.