Do I have the wrong inspection plate?

None of these are dust/ water tight..................Sometimes it's better. I once knew a "big hammer and big bang and big blue words" logger who is a cousin of a friend of mine. Hard worker but can be a real POS. One day he came in with a starter he'd bought from us and THREW it at the back bench, where it punched a hole in the sheeting on the back of the wall. He was unjustifiably pissed. I took it apart and it was FULL OF MUD

This was a "logging jitney" used for all the runaround jobs to and from and on a logging project---in the spring mud. They'd been "down in the mud and water" on the so called "roads" and filled the bellhousing of the about a 73 F350 460 full of MUD