resevoir on the right side of the engine???

What is that resovoir on the right side of the engine compartment, its round and is bout 4 inches tall and 4 inches wide. if you take the top off, you cant see down in it like a reg resovoir.

Is it for the trans??? And has anybody done a custom swap on these?? what you use??

Cuz its ugly as hell and im tryin to get the bay cleaned up n ready for bags.

And btw, the engine is a 2.6 b2600 4 cyl, with an auto trans

window washer or coolant bro

Is the one circled in yellow the one your talking about? If so then thats for the power steering.

Power steering fluid reservoir..U dont want to lose that one.BJ