il check it out, i dont know what caused it to shear....but i do know that im putting a lot of torque on it, but not ridiculous amounts, its a stock motor, and im running 4.56 gears with 33s...i was bogging it up a hill in 2wd n hoppin back end, and it just sheared...maybe its just the weakpoint? i knew right away what happened...so, i ripped it out and there are shears extending out around every bolt....so, it couldnt have been an oblong shear, seems pretty even, but because of the made in mexico stamp i found on it, im guessing it was just a cheap metal...its all i got to go on. it was well torqued, and from what i remember torqued to factory specs...there was locktight also. the bolts look good, but il give them another chek...i was thinking of some kind of washer or something to help absorb vibration maybe?