so this sh!t happened again ... the jeep is cursed!! this is a 1350 Spicer CV! WTF!?! i have been so much nicer to this shaft vs the old 1310, i don't get it. no clutch drops, no 1st gear launches, i only take off in 2nd (5.61:1 vs 3.04:1) and yet POP. there was no lead-up signals, just turned left from a stop sign and rolled into the throttle on 2nd gear, never even made it to WOT. left the shaft laying in the middle of the road.
i did clearance the crap out of the CV for more operation angle. there was no binding, the rust places are where i didn't repaint after grinding. it didn't fail anywhere near any place i had ground either. the 4-link is tight so i didn't get crazy pinion movement, and there was no tire spins so no wheel hop. the ONLY thing i can think is a spring clip left and a cap walked out.
