So, I've decided to try to improve my trucks oil pan.  It's the standard, almost flat, truck oil pan.  Fortunately it's the one that already has the baffle!  I have made a gate with some piano hinge:

And thus far I have clamped it to the pan, filled it with water, and sloshed it around to see if it actually improves anything:

The good new is that it seems to help a lot.  The flow back to the uh.. "sump" seems to be the same.  While the flow out of the sump has slowed greatly.  So I think this is all good.

There is about 1/4" of clearance beween the bottom of the pan and the bottom of the stock baffle:

I'm trying to decide wether I should trim another 1/4", totaling ~ 1/2", off of the bottom of the baffle to help flow back into the sump.  I'm not so great at welding yet.  So I am looking for advice before I do anything that may result in repair.

I really can't see how it would hurt anything.

Lawrenceville, GA