Does anyone know where i can get replacement bits to rebuild the Shimano DX pedal? Can anyone point me in the direction of some instructions on how to rebuild these pedals? Thanks in advance.

The last pair of shimano pedals I used where dx’s when they died I was advised it wad possible but bin and buy again was the best advice. I got cb after that for serviceable pedals

Which model number?

You should be able to find the an exploded view pdf with part numbers on the shimano tech docs site then just go from there.

I’ve kept a set of M646 going without much bother.

They can probably be saved.