My internet searching could not turn up NAPA 1070 filters. 1010 and 1080 are listed, though. I'm assuming you didn't mean AC Delco PF316 as the only filter I found by that number is a spin-on modern type. Using your information, Jack, NAPA 1010 should be the filter to use in my application then. So these were dealer installed filter setups, is that right? Thanks for your patience with this, I'm sure it has been asked and answered a million times before.
One more thing, should the filter canister be filled with oil before placing the lid back on?