My driver side notch was a little too far forward so I had to cut off the back part of where the leafs originally sat...the sawzal makes quick work of it.
when i had a flip and drop shackles(before i put on my drop hangers) i had to notch the little crossmember(i think it was the gas tank crossmember iirc,its been a long time) that the driveshaft was hitting. now i think you're two piece so im not sure if it'd be the same but check anyways