Engine cradle install help

[DeadEye200321]

Need some help here, I’m installing my lower engine cradle on after doing my timing chains and near the rear main seal, I have these crevices that are filled with some sort of rubbery stuff, in all the videos I’ve watched on installed the engine cradle, they seem to be empty. I’ve picked some of the rubbery stuff out and am wondering if it’s all supposed to be removed when installing a new seal or just pick out a little bit and put some rtv black in there when putting the new gasket on. Here are some pics for reference

 

[SenorNoob]

IF I'm looking at what I think I am, someone prior reinstalled that part (upper oil pan) with RTV. Ideally you wanna get as much of that cleaned up as possible if so.