Thanks guys. Second stupid question, what is inside the filter housing on the right frame rail and is a single housing? And where would I find a replacement for that filter ?
The housing is the first ( primary ) fuel filter. The filter is shorter than the housing so it can be used as a water separator. There is a spring inside to position the filter properly.
All the NAPA filters ( that i purchased ) came with multiple size gaskets. Take your time, I had a hell of a time getting the gaskets and housing to seat properly so they will not dribble / leak.
The fuel filters are all run in series, so I set up for increasingly smaller filtration.
From Napa I used:
Primary: Wix 3511- 10 Microns- Water Separation
Secondary: Wix 3512- 10 Microns
Final: Wix 33540- 6 Microns
Cheers