hey, I've got an 89 Camaro I-roc 357 with bolts on and some work. However, in the past three weeks I've broken three different harmonic balancer bolts inside my crank and my damper wobbles off. I've checked everything i can think of and I'm still shearing bolts. I've used different balancers, and checked my pulley alignment. My crank is an Eagle cast crank, everything is internally balanced, & engine is only revved to about 6100. The motor only has 12,000 on it. Balancer is also a press fit and does go on tight. I know this isn't an LS1 but i figured someone has to know what might be causing this. I would really appreciate any info. thanks, Jason.