Here come my 2 cents. I am not trying to argue with anyone, so if any one dissagrees fine... But dont take it personally.
'86 IFS 4Runner, 37" MTRs @15psi, 18psi on custom turbo setup, spool rear, lockright front.
I have very few times during my trips where I am not at full throttle, shifting gears in mud holes (crap like that). I have collapsed my rear axle tube, bent my leaf springs in half, Ripped teeth off the ring gear, had to go into the woods to find one of my pistons, and I'm sure theres more I'm forgetting. Either way, that was just last summer.
Through all of that I have broken only 1 Front CV. I had the diff dropped 1" and had the controll arms at such an angle that the front matched the rear with height. (Marlin 6", long spring rear) This was allowing 17 3/4" center clearance up front.
I was running 5.29 R&P. I have since moved back to a 4.10 and have not broken once.
I am not saying its better or worse. Just giving some input.
