75 Chevy SWB 4x4 adding a saddle fuel tank on driver's side

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75 Chevy SWB 4x4

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Supporting Member
Joined
Mar 10, 2025
Posts
26
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32
Location
NE Oregon
First Name
Doug
Truck Year
1975
Truck Model
K10 4x4
Engine Size
350
I just got this 75 Chevy SWB 4x4 and it only has a saddle tank on the passenger side.

I already bought an OEM fuel tank switch for the dash.

Can I just add the fuel tank switching valve, some wiring, left 16 gal fuel tank with sending unit and straps, and either cut a hole in the left bed side for the filler neck, or find a stock bed side that already has the fuel tank neck hole in it? I'm sure someone else here has done this task, but this is my first square body Chevy pickup that only has one gas tank.
 

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