nice looking cuda wax, what do you have for engine,trans?(i have the 273 commando and 4sp) All i know is that it depends on how the car is driven if it is going to break or not. I was told by many that the R200 in my datsun was super strong and pretty much indistructable, Well i broke three of them :toothy3: I get on here and talk to the guys and they tell me to swap out my 7.25 because it is weak. I beleive them and want an 8.25 or 8.75 but right now i dont have the cash. So what i am going to do is see how long this rear can last with me(i drag race a lot) I do have to say that it has held up better in the last 1000 miles than my other three in my datsun. I would get about 1k miles on my datsun rearends before they would break, that was with good rear ends. The rear in my cuda has been worn out since i got it on the road my dad told me he beat the crap outta it, i did a quick fix when the shaft that holds one set of the spider gears broke. That seems to be the only weak spot in this diff from what i can tell anyone else break anything else in these? I'd like to find out more about the 7.25's and see what breaks and the best way i know how is to break it myself :evil2: