This belongs in the MKIII section and definitely not an any of the FAQ sections. I'll move it for you.
Yes, the 7M-GE and 7M-GTE cranks are the same. It's quite uncommon for our cranks to wear to the point you're describing though. Have you taken everything apart and inspected everything? If you're just looking at the pulley, well, it might just be the pulley.
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