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Discussion Starter #1 (Edited)
Incase anyone is interested there are several 2 quart oil filters available that's actually for early model small and big block Chevys, and many other vehicles with the same threads and diameter as the OEM Duramax oil filter, but longer here's 2 that I was able to easily find specs on.
They don't have the by-pass valve which is set to open having 15-20 lb springs, IMO is a good thing not having, possibly returning dirty oil to the engine, also they don't have a anti-drain back valve, which concerned me a little with possibly having dry starts after setting.
With the angle of the oil filter this has not been a problem, and no-longer a concern.

Pictured from left to right.
AC Delco PF2232 30 micron OEM $9.00 @ Amazon - 2 qt Ac Delco PF932 30 micron $10.50 @ Amazon - 2 qt Donaldson P550832 20 micron $11.50 @ my local Empire Cat. which is a Donaldson dealer.
The Donaldson is a little harder to find for a good price, but I like the oil drain-back on it compared to the AC Delco PF932, which led me to start off with the Donaldson, making it now a 11 quart capacity having better filtering.
Oil pressure is just a few psi higher, a little harder to evaluate with the much colder temps we now have.
 

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Discussion Starter #3
After 6 1/2 months my oil is still pretty clean on the dipper stick, oil pressure is normal which I figured it would be by just increasing the filter capacity from one qt to two quarts shouldn’t change anything.
I'm comfortable with my decision, I still have a new PF2232, PF932 and another P550832 on my shelf so I could compare before I made the change.
i like the idea of the full flow always filtering the oil over by-pass valve
 
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