The m5's were notorious for being week ( as are the chrysler/dodge's m5's). Because of how the 700 operates, the band anchor pins take a lot of abuse when shifting to 2nd and 4th. Add 5000lbs and in upwards of 600 horse, and you're asking for trouble. I knew going into this deal that the 700r4 would probably not be able to handle what I was going to throw at it. I was hoping that using the best of the best parts would make it strong enough to handle the power and weight, but obviously it can't. ANYHOW, I said hemi's were gay, not the transmissions that backed them ( although if you go on any hemi boards you'll see that trannies and rears are breaking at an astounding rate). And for the record ( ask Justin) I'm still driving it even with the sheared pin and gaurantee I'll kill any hemi junker even in it's current state!!! Thank you, that is all