Hey all. hoping someone can help identify this noise before I start buying parts and pulling the trans.

2003 4runner sport, v6, 3040LE trans with dipstick. 175k miles

I get a grinding/squealing noise when the car is in drive or reverse, but stopped with the brake applied. It goes away when i start moving. The noise does change with AC clutch engagements or steering, but i took off the belt and it still made the noise, so its not coming directly from any belt driven accessories.

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This only happens after driving a few miles when things warm up.

I used a mechanics stethoscope and am 99% sure its coming from behind the bell housing.

I think its may be a cracked flexplate, but has anyone heard this before? I cannot find many other threads for 4th gen flex plate issues.

Does anyone know if its possible to swap the flex plate by just pulling the trans back a few inches on the 4th gen?

Thank you all for your help!