Trim spring cups?

[red02chevy]

On NBS's is there any need to trim the spring cups when installing bags, I know on OBS's you have to but I'm not sure about the NBS's

BTW I will be running stock arms, McGaughy's spindles, slam RS 72's and KP cups.

Thanks a lot.

[Izzy]

You have to trim the bumpstop mount.