Yup I cracked it almost in half. And so you under stand ill start in the begining... It started in august when i 1st bought the truck and i backed into a '01 Honda Civic, well i didnt notice at the time but the bumper of the civer hit my rear pumpkin denting the cover (GM 10 bolt 8.5) well it got pushed soo far back it hit the ring gear...well as i said before i ddint notice it, well anyway i drove around wirh it like that till yesterday when my rear right wheel studs "failed" and i was gonna take the axle out to replaced the studs, well when i took the cover off it was chewed up by the gear and thn i notic the "GOOD" part the differential was cracked around the spider gears (in a swirl partern....starting on the left goin around an stopping on the right.)..... someehow its worked all this time so ill ride it till it blows and through a nine inch or a dana in there /forums/images/graemlins/grin.gif but how do i get the axles out? i took the bolt out thew holds the pin in but the pin didnt budge....????