i dint chase the threads on the smaller bolts, only on the four bigger ones for the bearings, so that may be why they didnt break. i actually took it for a ride a little bit ago, and its filled up with rotella now. i have a few issues i need to address. like the e-start locking mech. i left the chain off since it doesnt work and thought my oil pump wasnt pumping. i thought about it after i heard the noise and it clicked as to what the real issue was. but im glad i found the 500t, it rips way better than my 450 did, im also running car coils, and the difference in trans gearing could play a role in that. thanks