You may have the arm on the wrong side.
This is a leopard right probably a a5? At first i thought it was a abrams because of the suspension units.
I’m thinking it’s a Leopard 1 for sure; I’m not a Leopard 1 boffin/maven/expert but I can tell that much.
It’s a good thought but the way they are keyed it isn’t possible to do so.
My current thinking is that the keying is a bit tight causing them to rotate a bit
