Do MSFC's strip IP Precendence bits from tagged packets?

[rob.maynard]

I want to mark source Multicast traffic with IP Precendence at ingress port which is located on the layer3 Server MSFC Core. To route to the WAN this packet will need to traverse at least on other Layer 3 MSFC Core(WAN) to get to the router.

Will these next hops strip the packet of it's tagging?

[carenas123]

No, unless you put any configuration to modify IP precedence values at second MSFC, it won't modify anything in transit.