ARP main studs clearance problem with Hemi pan

Hi, I am trying to fit a Hemi pan (bought from 440Source) to a 440 that has ARP main studs fitted. But the back of the pan (the shallow end) is hitting on the rear main studs. This is my first B/RB engine build so not sure if this is a common problem? The engine was previously running a Milodon deep pan (which fitted) but had ground clearance issue so I am swapping for a 6 Quart Hemi pan.

The rear studs and nuts are pushing the pan back almost a half inch.

Has anyone encountered this issue before? I'm sure I wouldn't be the first

thanks

Can you post a pic? I'm about to buy the same oil pan and have main studs as well. Would it help to buy shorter studs?