Loud noise in Rookie Chassis

[XxTerribleLiexX]

Hello, we are the rookie team 6722 Seahawk Metal. So are about to cut our drivetrain to be in the correct volume until we came across a noise in our chassis. So we took apart the Andymark's Toughbox Mini and we keep hearing this strange noise between the two toughboxes. Below I've put a link to the two of the sounds. Are those sounds suppose to sound like that?

One Drive:
Side One
https://1drv.ms/v/s!ApTGSNT-kKAgiBrseFSAFCjtR6p3

One Drive:
Side Two
https://1drv.ms/v/s!ApTGSNT-kKAgiBuidwRtTG2MmCL4

Thank You!