I drained my manual transmission. Last I knew, transmission fluid was pinkish or redish but this stuff looked like motor oil!
Also checked out the magnetic drain plug and I'm not really sure how much metal is too much.
Before:
After:
I'm in the progress of pulling the engine and I'm wondering if it would be a good idea to rebuild the transmission while I'm tearing into the truck or let it be till it fails. The little bit that I drove the truck it seemed like it shifted fine. Truck has 211,000 miles on it and for all i know this could still be the transmission from assembly in japan.