Depending on the setup, the hole to control flow through the filter can be either in the lines themselves or in the filter housing.

You need to make sure there is this type of restriction, so that the filter doesn't fill up with oil and starve your bearings.


1946 GMC Pickup - S-10 Frame, 455 Buick, TH400, original patina.

My 46 GMC on Photobucket