Well I just put in my 6.0L and tried to bolt up my stock transmission to it (97 4l60e) I put a spacer on the engine. But it looks like it will be to tight with the 6.0L flywheel is it supposed to be this tight or am I supposed to change it up to a new flywheel. If I'm to change it up what flywheel am I supposed to use and does someone have the p/n for it?