I am trying to split the cases on my '07 450. I have done this before on my 250f,and it was pretty easy w/o any sort of puller,but maybe because it's so darn cold outside(and in my garage),that it is not coming apart very easily. It has about a 1/4" gap on all sides,and I am only using the 3 pry tabs ,but it seems to be stuck now. The manual just says to remove all bolts and counter balancer.and the cases should come right apart! No mention of any sort of puller or special tools.Any suggestions on where to apply heat,or should I just bring it in the house overbight,and try it again in the morning?