Hemi swap oil pan questions

I have a 6.4 in my 71 Demon using Schumacher mounts on the factory Slant Six K frame. I'm using the Milodon 31000 pan and my center link also has a hard stop on the passenger side of the oil pan when turning right. I'm actually getting ready to order the Holley one and just plan on chopping a chunk out of it for clearance, or keeping the Milodon one with some heating and beating to get the clearance I need. The drivers side is fine BTW.

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Exactly what’s happening to mine except for Holley pan.. so here’s a question. If I swap to 73-76 components will I have to swap spindles / steering arms? I have big bolt pattern on it already don’t know what spindle it is though. Thinking about bump steer seeing the tie rod will be lower with 73-76 stuff