i didn't break anything but smoked the clutch on the first trip out since it was replaced. when they rebuilt the trans i specificly asked for the LUK but the guy thought he did me a favor by installing a Sachs. my stock clutch lasted 73,000 miles and this one didn't last at all. i have a short arm lift and with the amount of flex i get it's hard of bushings, i noticed a couple that need to be replaced on the rear control arms... but all in all not a bad trip out. my buddy snapped an axle shaft on his XJ